Perhaps you should try some spelling variations:
trien tinh » trieu tinh, trien kinh, trien minh
thien minh » tien minh, trien minh, thien tinh
hanh trang » thanh trung, canh tranh, hanh trinh
khong cong » thong cong, khong cang, chong cong
trang hua » trang ha, trang huy, trang phuc
hua khong » hoa khong, cua khong, hoac khong
cong tan » cong tac, cong san, cong thanh
than cao » thai cao, than cap, than sao
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((trien tinh) or (thien minh)) - hanh trang hua khong cong tan ((than cao) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((trien tinh) OR (thien minh)) - hanh trang hua khong cong tan ((than cao) OR (toan cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((trien tinh) or (thien minh)) - hanh trang hua khong cong tan ((than cao) OR (toan cao))*".