Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
cua dieu » va dieu
va nhanh » va thanh, va hanh, va nhan
cam truc » cau truc, nam truc, lam truoc
so sinh » so sanh, so tinh, cho sinh
truc va » thuc va, thuc vat, trung va
hieu ve » hieu va, hieu van
nang ma » sang ma, nang cao, mang may
tang ma » mang may, tang van
sinh v » sinh va, sinh y, sinh vat
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sinh v ((nang ma) or (tang ma)) hoi. hieu ve cam truc va nhanh thai ((cua dieu) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sinh v ((nang ma) OR (tang ma)) hoi. hieu ve cam truc va nhanh thai ((cua dieu) OR (cua vat)).
• Adding a wildcard symbol may retrieve word variants: so sinh v ((nang ma) or (tang ma)) hoi. hieu ve cam truc va nhanh thai ((cua dieu) or (cua vat))*.