Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua thi cua snippets" » "cua thoi cua snippets", "cua toi cua snippets", "cua chi cua snippets", "cua thai cua snippets", "cua thi cuc snippets", "cua tri 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: (((("cua thi 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: (((("cua thi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua thi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua thi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.