* It's a misspelling: There might be a similar-sounding word you're thinking of.
* It's a regional term: It could be a word used in a specific location or culture.
* It's a made-up word: It's possible the word is a fictional term or slang.
Could you provide more context?
For example:
* Where did you hear this word?
* What was the situation surrounding its use?
* What kind of thing are you looking for? (A definition, a translation, an explanation of its meaning, etc.)
With more information, I might be able to help you understand what "sangkaka" means.