Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van hanh » ban hanh, van anh, van ban
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
cua tuc » cua duc, cua tu, cua thuoc
sach o » sach lo, sac o, mach o
ve cam » ve cham, ve cac, va cam
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 o) OR (sach y)) lang xa hoi. hieu ve cam tuc ((van hanh) OR (van thanh)) vi cua tuc~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach o) OR (sach y)) lang xa hoi. hieu ve cam tuc ((van hanh) or (van thanh)) vi cua tuc~".
• Adding a wildcard symbol may retrieve word variants: te ((sach o) OR (sach y)) lang xa hoi. hieu ve cam tuc ((van hanh) or (van thanh)) vi cua tuc*.