Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi cong ton snippets" » "thi cong ton snippets", "khu cong ton snippets", "phi cong ton snippets", "khi cong toan snippets", "khi cong tan snippets", "khi cong lon 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: (((("khi cong ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi cong ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi cong ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi cong ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.