Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung thi chau snippets" » "dung tai chau snippets", "dung tri chau snippets", "dung chi chau snippets", "dung thi cham snippets", "dung thi hau snippets", "dung thi chap 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 thi chau snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung thi chau snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung thi chau snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung thi chau snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.