Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua trong » cua truong, cua trung, qua trong
thanh van » thanh san, thanh toan, thanh phan
so thiet » soc thiet, hoc thiet, hoa thiet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (so thiet)) tach - thanh trung cua trong cong thanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (so thiet)) tach - thanh trung cua trong cong thanh van ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (so thiet)) tach - thanh trung cua trong cong thanh van ban*.