Perhaps you should try some spelling variations:
thuong phuong » truong phuong, thong phuong, thuong luong
thong thuong » thong thong, hang thuong, cong thuong
thanh trung » thanh tung
thieu sach » chieu sach, thien hach, hieu cach
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
van chat » cao chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu sach) or (hien hanh)) - thanh trung cua ((thuong phuong) OR (thong thuong)) van chat va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sach) OR (hien hanh)) - thanh trung cua ((thuong phuong) OR (thong thuong)) van chat va.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sach) or (hien hanh)) - thanh trung cua ((thuong phuong) OR (thong thuong)) van chat va".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) or (hien hanh)) - thanh trung cua ((thuong phuong) OR (thong thuong)) van chat va*.