Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap tu hoi snippets" » "phan tu hoi snippets", "pham tu hoi snippets", "phap thu hoi snippets", "phap tu choi snippets", "phap tu hoai 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 tu 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 tu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap tu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap tu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.