Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thong dang » thong dung, thong mang, thong dan
trung tao » trung tam, trung tai, trung tuan
trong tao » trong tan, trong tho, trong tai
ho chieu » hoc thieu, doi chieu, mot chieu
dang anh » dang hanh, dang manh, dong anh
tuan ban » tuan bang, toan ban, luan ban

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) or (theo chieu)) xanh - hanh ((trung tao) OR (trong tao)) thong dang anh tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) xanh - hanh ((trung tao) OR (trong tao)) thong dang anh tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) xanh - hanh ((trung tao) OR (trong tao)) thong dang anh tuan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) xanh - hanh ((trung tao) OR (trong tao)) thong dang anh tuan ban*.