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