Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tuan van slippers" » "van quan van slippers", "van ban van slippers", "anh tuan van slippers", "van luan van slippers", "van tran van slippers", "van tan van slippers", "van tuan van slippery", "van tuan van 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 tuan van 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 tuan van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tuan van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tuan van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.