Perhaps you should try some spelling variations:
trieu minh » trieu tinh, trien minh, trien kinh
quang toan » quang tuan, quang tran, quang doan
hoc trieu » hoc thieu, hoc tieu, hoc dieu
trung cuu » trung cua, truong cua, trung cap
trung cau » trung cap, trung ca, trung can
nong cong » cong cong, tong cong, nang cong
sang toan » sang than, dang toan, sang tao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc trieu minh - thanh ((trung cuu) OR (trung cau)) nong cong ((sang toan) or (quang toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trieu minh - thanh ((trung cuu) OR (trung cau)) nong cong ((sang toan) OR (quang toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc trieu minh - thanh ((trung cuu) OR (trung cau)) nong cong ((sang toan) or (quang toan)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc trieu minh - thanh ((trung cuu) OR (trung cau)) nong cong ((sang toan) or (quang toan)) cau*.