Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi cong cua snippets" » "thi cong cua snippets", "khu cong cua snippets", "phi cong cua snippets", "khi cong cu snippets", "khi dong cua snippets", "khi huong 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: (((("khi cong cua 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 cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi cong cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi cong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.