Perhaps you should try some spelling variations:
trung tuan » trung thanh, tran tuan, truong thanh
theo chua » theo chu, ho chua, cheo cua
chua xang » chua nang, chuc nang, chu bang
trang cua » tranh cua, tang cua, trung cua
dong tac » cong tac, dong tai, dong bac
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chua xang - hanh ((trang cua) or (((trung tuan) OR (trung tam)))) cong dong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua xang - hanh ((trang cua) OR (((trung tuan) OR (trung tam)))) cong dong tac toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chua xang - hanh ((trang cua) or (((trung tuan) OR (trung tam)))) cong dong tac toan tap".
• Adding a wildcard symbol may retrieve word variants: theo chua xang - hanh ((trang cua) or (((trung tuan) OR (trung tam)))) cong dong tac toan tap*.