Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong thi da snippets" » "cong thi code snippets", "cong thai da snippets", "cong khi da snippets", "dong thi da snippets", "cong thi dai snippets", "cong thi dua snippets", "cong thi dan 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 thi da 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 thi da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong thi da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong thi da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.