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