Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"rong cho lan snippets" » "trong cho lan snippets", "dong cho lan snippets", "luong cho lan snippets", "rong cho lang snippets", "rong cao lan snippets", "rong cho lon 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 ("rong cho lan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("rong cho lan snippets"))) OR ("locating bug core snippets")).
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