Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
trang tuan » tran tuan, trung tuan, trong tuan
hieu manh » chieu xanh, hieu nganh, dieu hanh
trang qua » trong qua, trong quan, trung quan
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » 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 ((thien danh) or (hieu manh)) - hanh ((trang qua) OR (trang tuan)) trong cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (hieu manh)) - hanh ((trang qua) OR (trang tuan)) trong cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien danh) or (hieu manh)) - hanh ((trang qua) OR (trang tuan)) trong cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien danh) or (hieu manh)) - hanh ((trang qua) OR (trang tuan)) trong cong dan toan cau*.