Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi doan thi slippers" » "doi doanh thi slippers", "doi dan thi slippers", "voi doanh thi slippers", "doi doanh tai slippers", "doi hoang thi slippers", "doi doan thi slippery", "doi doan thi 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: (((("doi doan thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi doan thi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi doan thi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi doan thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.