Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong ho cua snippets" » "tuong ho cua snippets", "cuong vo cua snippets", "duong ho cua snippets", "cuong hoc cua snippets", "cuong hoi cua snippets", "cuong hoa cua 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 ho cua 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 ho cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong ho cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong ho cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.