Perhaps you should try some spelling variations:
cong thuong » hang thuong
thuong dan » huong dan, thuong han, thuong dam
chu tinh » chau tinh, chua tinh, chu tich
trang va » hang va
tran van » luan van
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu tinh) OR (cuu tinh)) - thanh ((trang va) or (tran van)) cong thuong dan thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu tinh) OR (cuu tinh)) - thanh ((trang va) OR (tran van)) cong thuong dan thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu tinh) OR (cuu tinh)) - thanh ((trang va) or (tran van)) cong thuong dan thai cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chu tinh) OR (cuu tinh)) - thanh ((trang va) or (tran van)) cong thuong dan thai cao*.