Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi ban cac snippets" » "khi bai cac snippets", "khi ben cac snippets", "khien ban cac snippets", "khi bang cac snippets", "khi ban can snippets", "khi ban sac 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 ban 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: (((("khi ban cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi ban cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi ban cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.