Perhaps you should try some spelling variations:
trung cua » truong cua, trung tuan, trung cap
tran tuan » tran xuan, tran quang, tran thanh
thong tac » thong cac, tuong tac, thong tai
chi hanh » chi nhanh, chi thanh, thi hanh
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi hanh - thanh ((trung cua) or (tran tuan)) thong thong tac phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi hanh - thanh ((trung cua) OR (tran tuan)) thong thong tac phan cau.
• Adding a wildcard symbol may retrieve word variants: doi chi hanh - thanh ((trung cua) or (tran tuan)) thong thong tac phan cau*.