Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phong tu chi snippets" » "phong tuc chi snippets", "thong tu chi snippets", "phong thuy chi snippets", "phong thu chi snippets", "phong tu chiu snippets", "phong tu choi 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: (((("phong tu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phong tu chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong tu chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong tu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.