Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh toan » tinh toan, thanh toan, trinh han
toan nhung » toan chung, toan khung, doanh nhung
nhung cong » dung cong, thong cong, hang cong
thieu anh » chieu xanh, thien danh, thieu nhi
thien anh » thien danh, tien anh, thien thanh
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu anh) OR (thien anh)) - hanh trinh toan nhung cong tan ((than cap) or (thanh san))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (thien anh)) - hanh trinh toan nhung cong tan ((than cap) OR (thanh san)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu anh) OR (thien anh)) - hanh trinh toan nhung cong tan ((than cap) or (thanh san))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu anh) OR (thien anh)) - hanh trinh toan nhung cong tan ((than cap) or (thanh san))*.