Perhaps you should try some spelling variations:
"tang qua trinh slippers" » "tang qua kinh slippers", "tang quan trinh slippers", "tang cua trinh slippers", "tang quy trinh slippers", "tang qua trinh slippery", "tang qua trinh 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: (((("tang qua 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: (((("tang qua trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang qua trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang qua trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.