Perhaps you should try some spelling variations:
"hanh duoc cham snippets" » "hanh thuoc cham snippets", "nganh duoc cham snippets", "doanh duoc cham snippets", "hanh duoc pham snippets", "hanh duoc chat snippets", "hanh duoc kham 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: (((("hanh duoc cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh duoc cham snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh duoc cham snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh duoc cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.