Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
theo phap » thi phap
thang cua » thong cua, hang cua, than cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac
theo ha » theo chu, thep nha, theo cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo ha) OR (theo phap)) tinh - cang thang cua dung cong tan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo ha) OR (theo phap)) tinh - cang thang cua dung cong tan than cap".
• Adding a wildcard symbol may retrieve word variants: ((theo ha) OR (theo phap)) tinh - cang thang cua dung cong tan than cap*.