Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu chung do snippets" » "khu cong do snippets", "tu chung do snippets", "nha chung do snippets", "khu chung co snippets", "khu chung o snippets", "khu nhung don 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: (((("khu chung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khu chung do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu chung do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu chung do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.