Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh tu dan slippers" » "trinh ky dan slippers", "trinh do dan slippers", "trinh tuc dan slippers", "trinh tu ban slippers", "trinh cu dan slippers", "trinh tu dan slippery", "trinh tu dan 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: (((("trinh tu dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh tu dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh tu dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh tu dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.