Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuon vi due snippets" » "chon vi due snippets", "cuong vo due snippets", "cuong ve due snippets", "cuon vi du snippets", "cuon vi dum 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: (((("cuon vi due snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon vi due snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon vi due snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon vi due snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.