Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"thuoc tra 05 snippets" » "thuoc tram 05 snippets", "thuoc tru 05 snippets", "thuoc tren 05 snippets", "thuoc tra 01 snippets", "thuoc tra 02 snippets", "thuoc tra 03 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: (((("thuoc tra 05 snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuoc tra 05 snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thuoc tra 05 snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc tra 05 snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.