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