Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tren van cau snippets" » "trien van cau snippets", "tran van cau snippets", "tien van cau snippets", "tren van dau snippets", "tren van hau snippets", "tren 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: (((("tren 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: (((("tren van cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tren van cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tren van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.