Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao vang de snippets" » "cao dang de snippets", "cao tang de snippets", "cao bang de snippets", "cao van de snippets", "cao hoang de 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 vang de 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 vang de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao vang de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao vang de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.