Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian su cao snippets" » "gian suu cao snippets", "gian xu cao snippets", "giao su cao snippets", "gian cu cao snippets", "gian vu cao snippets", "gian su co 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: (((("gian su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian su cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian su cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.