Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van binh cau snippets" » "van minh cau snippets", "van dinh cau snippets", "van linh cau snippets", "van binh chau snippets", "van sinh cau snippets", "van binh cao 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: (((("van binh 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: (((("van binh cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van binh cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van binh cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.