Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
thuyet danh » thuyet dan, thuyet anh, khuyet danh
truong cua » truong ca, truong quan, truong cao
trung cua » trung tuan, trung cap, dung cua
cong san » cong tac
san than » sang than, san thanh, ban than
than tap » toan tap, han tap, phan 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 ((thuyet danh) or (thuyet kinh)) - hanh ((trung cua) OR (truong cua)) truong cong san than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thuyet danh) OR (thuyet kinh)) - hanh ((trung cua) OR (truong cua)) truong cong san than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thuyet danh) or (thuyet kinh)) - hanh ((trung cua) OR (truong cua)) truong cong san than tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thuyet danh) or (thuyet kinh)) - hanh ((trung cua) OR (truong cua)) truong cong san than tap*.