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