Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap co hoi snippets" » "phap cho hoi snippets", "phap coc hoi snippets", "phap mo hoi snippets", "phap co hoc snippets", "phap co loi 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 co hoi 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 co hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap co hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap co hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.