Perhaps you should try some spelling variations:
cua viet » hoa viet, cua vat, cua dieu
truc van » truc va, thuc van, truc ban
van anh » van thanh, tuan anh, van minh
sach ty » sach y, sach tu, sach thu
ca viet » va viet, co viet, hoa viet
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
sai ky » sac ky
anh va » hanh va
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ty) or (sai ky)) nang xa hoi. hieu va cau truc van anh va ((cua viet) OR (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sai ky)) nang xa hoi. hieu va cau truc van anh va ((cua viet) OR (ca viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) or (sai ky)) nang xa hoi. hieu va cau truc van anh va ((cua viet) OR (ca viet))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sai ky)) nang xa hoi. hieu va cau truc van anh va ((cua viet) OR (ca viet))*.