Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang mau mot snippets" » "dong mau mot snippets", "dang van mot snippets", "dang su mot snippets", "dang dau mot snippets", "dang khau mot snippets", "dang mau chot 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 mau mot 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 mau mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang mau mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang mau mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.