Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tro hoi hoc snippets" » "tro choi hoc snippets", "tao hoi hoc snippets", "tri hoi hoc snippets", "tro hoa hoc snippets", "tro khoa hoc snippets", "tro hoi chuc snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tro hoi hoc snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tro hoi hoc snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
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