Perhaps you should try some spelling variations:
thiet tach » thien hach, thuat tach
chiet tach » chieu sach
thanh tung » thanh cong
tung tuan » trung tuan, hung tuan, quang tuan
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
ban thanh » ban hanh, ban hang
thanh lap » thanh san, phan lap, thanh hai
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: soc ((thiet tach) OR (chiet tach)) - thanh tung tuan dung cong ban thanh lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "soc ((thiet tach) OR (chiet tach)) - thanh tung tuan dung cong ban thanh lap".
• Adding a wildcard symbol may retrieve word variants: soc ((thiet tach) OR (chiet tach)) - thanh tung tuan dung cong ban thanh lap*.