Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach dung du snippets" » "sach dung du snippets", "cach mang du snippets", "tac dung du snippets", "cach dung de snippets", "cach dung cu snippets", "cach dung cua 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: (((("cach dung du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach dung du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach dung du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach dung du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.