Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dinh vu cac snippets" » "dich vu cac snippets", "dinh ve cac snippets", "dinh cu cac snippets", "dinh va cac snippets", "dinh tu cac 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: (((("dinh vu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dinh vu cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh vu cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh vu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.