Perhaps you should try some spelling variations:
dung cong » dung trong
trung va » truong va, trang va, trung tam
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac
cua chu » sua chua
chu van » cuu van, chu han

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

• Performing a fuzzy search may retrieve terms with similar spellings: cua chu van - hanh ((trung va) OR (trung ha)) dung cong san ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cua chu van - hanh ((trung va) OR (trung ha)) dung cong san ((than cau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "cua chu van - hanh ((trung va) OR (trung ha)) dung cong san ((than cau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: cua chu van - hanh ((trung va) OR (trung ha)) dung cong san ((than cau) or (than cap))*.