Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
van hanh » van thanh, ban hanh, van anh
truc van » truc va, thuc van, truc ban
xach tay » canh tay
cam truc » cau truc, nam truc, lam truoc
sach tay » sach hay, sach nay, sach tai
cua tuc » cua duc, cua tu, cua thuoc
hieu va » lieu va, hieu qua
tang xa » trang xa, tang ma, lang xa
vi cua » vai cua, di cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach tay) OR (xach tay)) tang xa hoi. ((hieu va) OR (hieu van)) cam truc van hanh vi cua tuc~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach tay) OR (xach tay)) tang xa hoi. ((hieu va) or (hieu van)) cam truc van hanh vi cua tuc~".
• Adding a wildcard symbol may retrieve word variants: toc ((sach tay) OR (xach tay)) tang xa hoi. ((hieu va) or (hieu van)) cam truc van hanh vi cua tuc*.