Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan hanh noi snippets" » "tan thanh noi snippets", "tang hanh noi snippets", "toan hanh noi snippets", "tan ha noi snippets", "tan hanh vi 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 hanh noi 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 hanh noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan hanh noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan hanh noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.