Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
truc va » thuc va, thuc vat, trung va
hieu ve » hieu va, hieu van
nang co » nang cao, nang doc, nang noi
tuc va » thuc va, tuc xa, duc va
ve cam » ve cham, ve cac, va cam
co hoi » co hoc, co loi
lam su » lam so, lam vu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang co hoi. hieu ve cam ((tuc va) or (truc va)) thanh ((lam su) OR (lai su)) tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang co hoi. hieu ve cam ((tuc va) OR (truc va)) thanh ((lam su) OR (lai su)) tien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang co hoi. hieu ve cam ((tuc va) or (truc va)) thanh ((lam su) OR (lai su)) tien".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang co hoi. hieu ve cam ((tuc va) or (truc va)) thanh ((lam su) OR (lai su)) tien*.