Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van hoc hanh slippers" » "van hoc nhanh slippers", "van hoc thanh slippers", "van hoc anh slippers", "van hoa hanh slippers", "van hoc hanh slippery", "van hoc hanh 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: (((("van hoc hanh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van hoc hanh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hoc hanh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hoc hanh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.