Perhaps you should try some spelling variations:
day tieng » va tieng, ban tieng, dau tien
xuyen tai » xuyen tac, nguyen tai, truyen tai
dau tieng » dau tien, cau tieng, mau tieng
dung cong » dung trong
cac kieu » cach tieu, cac yeu, tac kiem
cac thu » cach thuc, cac thoi
ban ve » ban va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: xuyen tai ((cac kieu) or (cac thu)) đe co ban ve ((day tieng) OR (dau tieng)) dung cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: xuyen tai ((cac kieu) OR (cac thu)) đe co ban ve ((day tieng) OR (dau tieng)) dung cong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "xuyen tai ((cac kieu) or (cac thu)) đe co ban ve ((day tieng) OR (dau tieng)) dung cong".
• Adding a wildcard symbol may retrieve word variants: xuyen tai ((cac kieu) or (cac thu)) đe co ban ve ((day tieng) OR (dau tieng)) dung cong*.