Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhin van cau snippets" » "nhan van cau snippets", "thien van cau snippets", "nhung van cau snippets", "nhin van dau snippets", "nhin van hau snippets", "nhin van chat 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: (((("nhin van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhin van cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhin van cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhin van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.