Perhaps you should try some spelling variations:
chieu tach » chiet tach, chieu sach, chiu trach
hanh trinh » canh tranh, hanh chinh
quan nhung » qua nhung, cua nhung, quang hung
luan chung » luan chinh
cong tanh » cong thanh, cong tinh, cong danh
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tach - hanh trinh ((quan nhung) OR (luan chung)) ((cong tanh) or (cong tan)) tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tach - hanh trinh ((quan nhung) OR (luan chung)) ((cong tanh) OR (cong tan)) tuan cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tach - hanh trinh ((quan nhung) OR (luan chung)) ((cong tanh) or (cong tan)) tuan cu".
• Adding a wildcard symbol may retrieve word variants: ho chieu tach - hanh trinh ((quan nhung) OR (luan chung)) ((cong tanh) or (cong tan)) tuan cu*.