Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong cac phe snippets" » "cong cac code snippets", "cuong cac phe snippets", "cong tac phe snippets", "cong cau phe snippets", "cong cac he snippets", "cong cac che snippets", "cong ca phe 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: (((("cong cac phe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cac phe snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong cac phe snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cac phe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.