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