Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong khi dot snippets" » "cong thai dot snippets", "khong khi dot snippets", "co khi dot snippets", "cong khi doi snippets", "cong khi tot snippets", "cong khi dong 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: (((("cong khi dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong khi dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong khi dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong khi dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.