Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan am hoi snippets" » "quan nam hoi snippets", "quan tam hoi snippets", "quan ao hoi snippets", "quan am hoc snippets", "quan cham hoi 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: (((("quan am hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan am hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan am hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan am hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.