Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu thi dan slippers" » "sieu thi dan slippers", "hieu chi dan slippers", "hiep thi dan slippers", "hieu thi doan slippers", "hieu thi lan slippers", "hieu thi dai slippers", "hieu thi dan slippery", "hieu thi 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: (((("hieu thi 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: (((("hieu thi dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu thi dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu thi dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.