Perhaps you should try some spelling variations:
cham thuc » nham thuc, pham thuc, tham thuc
dao trang » dao trong, dao trung, do trang
trang xa » trang va, trang ha, trong xa
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
thuc day » thuc dan, thuc vat
day hanh » day nhanh, day thanh, dao hanh
hanh lai » hanh lam, hanh tai, thanh lap
su triet » su viet, su tien, ve triet
su lanh » su anh, tu lanh, su thanh
ca viet » va viet, co viet, hoa viet

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

• Performing a fuzzy search may retrieve terms with similar spellings: su lanh dao trang xa hoi. hieu van cham thuc day hanh lai ((su triet) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su lanh dao trang xa hoi. hieu van cham thuc day hanh lai ((su triet) OR (ca viet)).
• Adding a wildcard symbol may retrieve word variants: su lanh dao trang xa hoi. hieu van cham thuc day hanh lai ((su triet) or (ca viet))*.