Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"theo chu cac snippets" » "theo chieu cac snippets", "cho chu cac snippets", "chao chu cac snippets", "theo cho cac snippets", "theo cuu cac snippets", "theo chu cai 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: (((("theo chu cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("theo chu cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( theo chu cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("theo chu cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.