Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ghep doi cua snippets" » "ghep doi code snippets", "ghep noi cua snippets", "ghep tuoi cua snippets", "gap doi cua snippets", "ghep hoi cua snippets", "ghep dai cua snippets", "ghep dong cua 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: (((("ghep doi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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