Perhaps you should try some spelling variations:
"luong tin trinh snippets" » "luong tien trinh snippets", "luong dinh trinh snippets", "luong sinh trinh snippets", "thong tin trinh snippets", "luong tai trinh snippets", "luong thi trinh snippets", "luong tin trinh slippers"
"using a code snippets" » "using a core snippets", "using a code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "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: (((("using a code snippets") or ("luong tin trinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("luong tin trinh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( luong tin trinh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("luong tin trinh snippets"))) or ("locating bug code snippets"))*.