Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan cau chap snippets" » "tan cau cham snippets", "tan cau chan snippets", "tan cau phap snippets", "toan cau chap snippets", "van cau chap snippets", "tan ca chap 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 cau chap 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 cau chap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan cau chap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan cau chap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.