Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat hoi cau snippets" » "vat hoc cau snippets", "va hoi cau snippets", "sat hoi cau snippets", "vat hoi chu snippets", "vat hoa cau 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: (((("vat hoi 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: (((("vat hoi cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat hoi cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat hoi cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.