Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chat, vu cham
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
ve cam » ve cac, va cam, ve cai
x hoi » xa hoi, o hoi, x ho
di su » doi su, ki su, da su

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 ky nang x hoi. hieu ((ve cam) or (ve cham)) thuc va danh di su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x hoi. hieu ((ve cam) OR (ve cham)) thuc va danh di su triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu ((ve cam) or (ve cham)) thuc va danh di su triet*.