Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vot cong cau snippets" » "vot cong code snippets", "voi cong cau snippets", "mot cong cau snippets", "bot cong cau snippets", "vot cong cu snippets", "vot cong chuc snippets", "vot thong cau snippets"
"python using java snippets" » "python using data 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: (((("vot cong cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vot cong cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( vot cong cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vot cong cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.