Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong cach te snippets" » "dong cac te snippets", "dong bach te snippets", "phong cach te snippets", "dong cach de snippets", "dong cach tu snippets", "dong cach le 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: (((("dong cach te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cach te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cach te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cach te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.