Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"pham ma trinh slippers" » "pham va trinh slippers", "pham lap trinh slippers", "pham qua trinh slippers", "pham van trinh slippers", "pham tai trinh slippers", "pham ma trinh slippery", "pham ma trinh grippers"
"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: (((("pham ma trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham ma trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham ma trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham ma trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.