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