Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao cuoi cua snippets" » "cao tuoi cua snippets", "bao chuoi cua snippets", "cao cuong cua snippets", "cao hoi cua snippets", "cao doi cua snippets", "cao co 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: (((("cao cuoi 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: (((("cao cuoi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao cuoi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao cuoi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.