Perhaps you should try some spelling variations:
thanh tung » thanh cong
theo diep » theo tieu
tong cong » trong cong, cong cong, dung cong
thanh lap » thanh san, phan lap, thanh hai
tung cua » trung cua, tuong cua, dung cua
cua tong » cua cong, cua dong, cua nong
cong san » cong tac
khan cap » than cap, khoan cam, phan cac
khan ap » han ap, khan dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo diep tinh - thanh tung cua tong cong san ((((khan cap) or (khan ap))) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo diep tinh - thanh tung cua tong cong san ((((khan cap) OR (khan ap))) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: theo diep tinh - thanh tung cua tong cong san ((((khan cap) or (khan ap))) or (thanh lap))*.