Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
tu xang » ty xang, tu lang, tu quang
xang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
cua tuc » cua duc, cua tu, cua thuoc
tuc van » thuc van, truc van, tuc va
hanh di » hanh vi, hanh de, hang di
cua chu » sua chua
ve cua » le cua, de cua, te cua
di cua » dai cua, doi cua, de cua

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) or (su sach)) tu xang xa hoi. hieu ve cua tuc van hanh di cua chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) tu xang xa hoi. hieu ve cua tuc van hanh di cua chu.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) tu xang xa hoi. hieu ve cua tuc van hanh di cua chu*.