Perhaps you should try some spelling variations:
"khanh dinh chau snippets" » "khanh linh chau snippets", "khanh vinh chau snippets", "hanh dinh chau snippets", "khanh minh chau snippets", "khanh tinh chat snippets", "khanh dinh chi snippets"
"dung java java snippets" » "dung va java 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: (((("dung java java snippets") or ("khanh dinh chau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("khanh dinh chau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( khanh dinh chau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("khanh dinh chau snippets"))) or ("locating bug code snippets"))*.