Perhaps you should try some spelling variations:
"dung chinh cham snippets" » "dang chinh cham snippets", "quang chinh cham snippets", "tuong chinh cham snippets", "dung chin cham snippets", "dung chinh chau snippets", "dung chinh nham snippets"
"hang java java snippets" » "hang 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 chinh cham 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 chinh cham snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung chinh cham snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung chinh cham snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.