Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con diep toi snippets" » "hong diep toi snippets", "cong dieu toi snippets", "con giap toi snippets", "con tiep thi snippets", "con dinh toi snippets", "con dem toi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("con diep toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con diep toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con diep toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con diep toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.