Perhaps you should try some spelling variations:
"dang cac chieu snippets" » "dang cac chien snippets", "dang cao hieu snippets", "dang cac che snippets", "dung cac chieu snippets", "bang cac chieu snippets", "dong cac chieu 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: (((("dang cac chieu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang cac chieu snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang cac chieu snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang cac chieu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.