Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phong tu cho snippets" » "phong tuc cho snippets", "thong tu cho snippets", "phong thuy cho snippets", "phong tu choi snippets", "phong tu chon snippets", "phong cu cho 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 cho 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 cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong tu cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong tu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.