Perhaps you should try some spelling variations:
"san viet trinh snippets" » "san viet trung snippets", "san viet thanh snippets", "san viet trong snippets", "gian viet trinh snippets", "anh viet trinh snippets", "san viet trinh slippers"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets", "dung cac code slippers"
"locating bug code 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: (((("san viet trinh snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("san viet trinh snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( san viet trinh snippets ) or ( dung cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("san viet trinh snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))*.