Perhaps you should try some spelling variations:
tuan thuong » than thuong, toan thuong, thanh thuong
thiet danh » thien danh, thien anh, thien dang
thanh tung » thanh cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tung tuan » trung tuan, hung tuan, quang tuan
phan dau » phan tu, hang dau
con ban » con bang, can ban, coc ban
van cau » van dau, van hau, van 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 thiet danh - thanh tung tuan thuong ((con ban) OR (co ban)) ((van cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - thanh tung tuan thuong ((con ban) OR (co ban)) ((van cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet danh - thanh tung tuan thuong ((con ban) OR (co ban)) ((van cau) or (phan dau))".
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - thanh tung tuan thuong ((con ban) OR (co ban)) ((van cau) or (phan dau))*.