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