Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh vat o2 snippets" » "trinh vat code snippets", "trinh van o2 snippets", "trinh luat o2 snippets", "sinh vat o2 snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("trinh vat o2 snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh vat o2 snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("trinh vat o2 snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.