Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chau doc voi snippets" » "chat doc voi snippets", "cau do voi snippets", "phau hoc voi snippets", "chau doi voi snippets", "chau doc vi snippets", "chau do voi 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: (((("chau doc voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chau doc voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chau doc voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chau doc voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.