Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong ma can snippets" » "cuong _ can snippets", "cuong mao can snippets", "cuong mat can snippets", "cuong ma van 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 ma can 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 ma can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong ma can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong ma can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.