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