Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tu khac slippers" » "van vu khac slippers", "van su khac slippers", "van ta khac slippers", "van thu khac slippers", "van du khac slippers", "ban tu khac slippers", "van tu khac slippery", "van tu khac 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 tu khac 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 tu khac slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tu khac slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tu khac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.