Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
tong thong » thong thong, dong thong, cong thong
quan thanh » ban thanh, van thanh
tieu xanh » tieu danh, chieu xanh, dieu hanh
trung cap » truong cao, trung tam
thanh tap » thanh lap, thanh tai, thanh tay

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh ((trung tuan) or (trung cap)) tong thong quan thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh ((trung tuan) OR (trung cap)) tong thong quan thanh tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ((trung tuan) or (trung cap)) tong thong quan thanh tap*.