Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"voi quoc doi snippets" » "voi quoc code snippets", "voi cuoc doi snippets", "vuon quoc doi snippets", "mai quoc doi snippets", "voi quoc hoi snippets", "voi luoc doi 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: (((("voi quoc doi snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi quoc doi snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( voi quoc doi snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi quoc doi snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.