Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"chon chu xac snippets" » "cho chu xac snippets", "choi chu xac snippets", "chon chung xac snippets", "chon cuu xac snippets", "chon thu xac snippets", "chon chu xuan snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("chon chu xac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chon chu xac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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