Perhaps you should try some spelling variations:
sach tai » sach bai, sach tham, sach dao
tai lang » tai cong, thi lan, tai san
tinh hai » tinh thai, tinh chat, trinh han
dat tren » dat trong, dua tren
dau tien » van tien
te sach » toc sach
lang ha » long ha
van cau » van dau, van hau, van chat
va tinh » may tinh
ha hoi » hoa hoi, ha noi, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tai lang ha hoi. hieu ((van nam) or (van cau)) tu va tinh hai ((dat tren) or (dau tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tai lang ha hoi. hieu ((van nam) OR (van cau)) tu va tinh hai ((dat tren) OR (dau tien)).
• Adding a wildcard symbol may retrieve word variants: te sach tai lang ha hoi. hieu ((van nam) or (van cau)) tu va tinh hai ((dat tren) or (dau tien))*.