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