Perhaps you should try some spelling variations:
"truan doi tinh slippers" » "truyen doi tinh slippers", "quan doi tinh slippers", "khuan doi tinh slippers", "truan doi trinh slippers", "truan hoi tinh slippers", "truan don tinh slippers", "truan doi tinh slippery", "truan doi tinh 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: (((("truan doi tinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truan doi tinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truan doi tinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truan doi tinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.