Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"may cac thoi snippets" » "may cac toi snippets", "may cac hop snippets", "may cac tro snippets", "may cat thoi snippets", "may mac thoi snippets", "tay cac thoi snippets"

Try widening your search to All Fields.

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