Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu phuc du snippets" » "khu phu du snippets", "khac phuc du snippets", "khao phuc du snippets", "khu phuc vu snippets", "khu phuc su snippets", "khu thuc du 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 phuc du 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 phuc du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu phuc du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu phuc du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.