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