Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va tin toi snippets" » "va tinh toi snippets", "va tin hoi snippets", "va tin soi snippets", "van tin toi snippets", "va tieng 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: (((("va tin 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: (((("va tin toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va tin toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va tin toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.