Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe cnc dan slippers" » "nghe cong dan slippers", "nghe che dan slippers", "nghe co dan slippers", "nghe cac dan slippers", "nghe cac dang slippers", "nghe cnc dan slippery", "nghe cnc 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: (((("nghe cnc 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: (((("nghe cnc dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe cnc dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe cnc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.