Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap doc voi snippets" » "phap hoc voi snippets", "phap coc voi snippets", "phap dot voi snippets", "phap doi voi snippets", "phap doc vi snippets", "phap do voi 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: (((("phap doc voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap doc voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap doc voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap doc voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.