Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong cac di snippets" » "cong cac code snippets", "cuong cac di snippets", "cong tac di snippets", "cong cau di snippets", "cong cac dai snippets", "cong cac dia snippets", "cong cac doi 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 di 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 di snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong cac di snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cac di snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.