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