Perhaps you should try some spelling variations:
sach tay » xach tay, sach hay, sach nay
tay lang » tai lang, tay tang, tay quang
hieu van » thien van, lieu va, hieu ve
cam truc » nam truc, lam truoc, nam truoc
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cua tuc » cua duc, cua tu, cua thuoc
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: te sach tay lang xa hoi. ((hieu van) OR (hieu va)) ((cam truc) OR (cau truc)) van hanh vi cua tuc~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tay lang xa hoi. ((hieu van) OR (hieu va)) ((cam truc) or (cau truc)) van hanh vi cua tuc~".
• Adding a wildcard symbol may retrieve word variants: te sach tay lang xa hoi. ((hieu van) OR (hieu va)) ((cam truc) or (cau truc)) van hanh vi cua tuc*.