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