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