Perhaps you should try some spelling variations:
"hoc cong tranh snippets" » "hoc cong trinh snippets", "hoc cong thanh snippets", "hoc dong tranh snippets", "hoc co tranh snippets", "cac cong tranh snippets", "hoc dung tranh snippets", "hoc cong tranh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 java java snippets") or ("hoc cong tranh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("hoc cong tranh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( hoc cong tranh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("hoc cong tranh snippets"))) or ("locating bug code snippets"))*.