Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tao lieu voi snippets" » "tao lieu code snippets", "tai lieu voi snippets", "tao dieu voi snippets", "tao lien voi snippets", "tao lieu boi snippets", "tao lieu va snippets", "tao lieu hoc snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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