Perhaps you should try some spelling variations:
"cong lang cac snippets" » "cong vang cac snippets", "cong luong cac snippets", "cong quang cac snippets", "cong hang cac snippets", "cong dang cac snippets", "cong lang cao snippets"
"dong bang cac snippets" » "dong san cac snippets", "dong nang cao snippets", "dong hang ca snippets", "dong dung cac snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 lang cac snippets") or ("dong bang cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong lang cac snippets") OR ("dong bang cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong lang cac snippets ) or ( dong bang cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong lang cac snippets") or ("dong bang cac snippets"))) or ("locating bug code snippets"))*.