Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang moi he snippets" » "dung moi he snippets", "dang noi he snippets", "dang loi he snippets", "dang moi ve snippets", "dang moi ke snippets", "dang moi de 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: (((("dang moi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang moi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang moi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang moi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.