Perhaps you should try some spelling variations:
dung thuong » dung trong, hang thuong, cong thuong
hanh trung » thanh trung, hanh trang, manh trung
tieu tinh » trieu tinh, tieu trinh, lieu tinh
trung ap » trung cap, trung lap, trung tam
van tuan » van ban, anh tuan
van quan » van ban
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - hanh trung ap dung thuong ((van tuan) or (van quan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - hanh trung ap dung thuong ((van tuan) OR (van quan)) tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - hanh trung ap dung thuong ((van tuan) or (van quan)) tap*.