Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao ve doc snippets" » "bao ve doc snippets", "cao va doc snippets", "ca ve doc snippets", "cao ve duoc snippets", "cao me doc 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: (((("cao ve doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao ve doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao ve doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao ve doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.