Perhaps you should try some spelling variations:
"tranh hang anh slippers" » "trinh han anh slippers", "tran hoang anh slippers", "tranh hoang anh slippers", "tranh hong anh slippers", "tranh hung anh slippers", "tranh hang anh slippery", "tranh hang anh grippers"
"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: (((("dung java java snippets") or ("tranh hang anh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tranh hang anh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tranh hang anh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tranh hang anh slippers"))) or ("locating bug code snippets"))*.