Perhaps you should try some spelling variations:
duoc tren » nuoc tren, thuoc tren, dung tren
duc tien » duc thien, luc tieng, thuc tien
van nang » van quang, van ban, van dong
nang tai » hang tai, tang tai, sang tai
hieu van » hieu va, thien van, lieu va
van thai » van thoai, van tai, van hai
thai tuc » thai thuc, thai thuy, thai hoc
cuc tre » duc tre, cua tre, cuu tre
tuc van » thuc van, truc van, tuc va
hanh ma » hanh mau, hanh may, hanh va
ky hanh » ly hanh, ky anh, ky danh
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky hanh ma hoi. hieu van thai tuc van nang tai ((cuc tre) or (((duoc tren) or (duc tien))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky hanh ma hoi. hieu van thai tuc van nang tai ((cuc tre) OR (((duoc tren) OR (duc tien))))*.