Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong khac mo snippets" » "cong khac code snippets", "cong khan mo snippets", "cong khanh mo snippets", "cong tac mo snippets", "cong khac do snippets", "cong khac co snippets", "cong khai mo 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 khac mo 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 khac mo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong khac mo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong khac mo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.