Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, nhanh chong
theo chieu » theo tieu, ho chieu, theo chu
hanh trang » thanh trung, canh tranh, hanh trinh
theo chau » theo chu, theo phap, theo cap
dang cong » dung cong
van dang » van dong, van dung, van nang
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chau) OR (theo chieu)) tinh - ((nhanh thang) or (hanh trang)) van dang cong tan phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chau) OR (theo chieu)) tinh - ((nhanh thang) OR (hanh trang)) van dang cong tan phan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chau) OR (theo chieu)) tinh - ((nhanh thang) or (hanh trang)) van dang cong tan phan tap".
• Adding a wildcard symbol may retrieve word variants: ((theo chau) OR (theo chieu)) tinh - ((nhanh thang) or (hanh trang)) van dang cong tan phan tap*.