Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va huong von snippets" » "va luong von snippets", "va huong dong snippets", "va huong loan snippets", "va thuong von snippets", "va phuong von snippets", "va tuong von 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 huong von 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 huong von snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va huong von snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va huong von snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.