Perhaps you should try some spelling variations:
cong thuong » hang thuong
thuong dan » huong dan, thuong han, thuong dam
thoi hanh » thi hanh, troi hanh, tuoi thanh
trung hoa » trung hoc, trung ha
trung cap » truong cao, trung tam
doi thoi » doi thoai, moi thoi, do thoi
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi thoi hanh - thanh ((trung hoa) or (trung cap)) cong thuong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi thoi hanh - thanh ((trung hoa) OR (trung cap)) cong thuong dan phan tu.
• Adding a wildcard symbol may retrieve word variants: doi thoi hanh - thanh ((trung hoa) or (trung cap)) cong thuong dan phan tu*.