Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong co toi snippets" » "duong co toi snippets", "cuong vo toi snippets", "cong co toi snippets", "cuong co hoi snippets", "cuong co loi snippets", "cuong co doi snippets"
"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: (((("cuong co toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong co toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong co toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong co toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.