Perhaps you should try some spelling variations:
"luong cac che snippets" » "luong cuoc che snippets", "luong va che snippets", "luong tai che snippets", "luong cac he snippets", "luong cac chien snippets", "luong cac chat snippets"
"cong so code snippets" » "cong san code snippets", "cong hoa code snippets", "cong so core snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code 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 so code snippets") or ("luong cac che snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong so code snippets") OR ("luong cac che snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong so code snippets ) or ( luong cac che snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong so code snippets") or ("luong cac che snippets"))) or ("locating bug code snippets"))*.