Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi phai con snippets" » "khi thai con snippets", "chi phi con snippets", "khi hau con snippets", "khi phai co snippets", "khi hai con snippets", "khi phau con 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: (((("khi phai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi phai con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi phai con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi phai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.