Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hang dam lua snippets" » "chang dam lua snippets", "hang dau lua snippets", "hang nam lua snippets", "hang dam cua snippets", "hang dap lua snippets", "hang dan luan snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("hang dam lua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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