Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu vu cao snippets" » "chu tu cao snippets", "chu ru cao snippets", "chu vi cao snippets", "chu cu cao snippets", "chu va cao 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: (((("chu vu 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: (((("chu vu cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu vu cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu vu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.