Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
su sach » so sach, vu sach
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va chay » va chat, va cham, va cay
dua ban » dia ban, cua ban, qua ban
san cua » sang cua, ban cua, dan cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tu ((nang xa) OR (nang ma)) hoi. hieu va chay dua ban thanh san cua triet~".
• Adding a wildcard symbol may retrieve word variants: su sach tu ((nang xa) OR (nang ma)) hoi. hieu va chay dua ban thanh san cua triet*.