Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan doi cua snippets" » "tan hoi cua snippets", "tan soi cua snippets", "tan voi cua snippets", "tan dai cua snippets", "tan dong 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: (((("tan doi 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: (((("tan doi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan doi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan doi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.