Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
lieu tinh » trieu tinh, diep tinh, bien tinh
dang cong » dung cong
trong ca » trong cac, trong nha
cong san » cong tac
than cau » toan cau, phan cau, than cap
phan dau » phan tu, hang dau
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - hanh ((trung tuan) or (trong ca)) dang cong san ((than cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh ((trung tuan) OR (trong ca)) dang cong san ((than cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh ((trung tuan) or (trong ca)) dang cong san ((than cau) or (phan dau))*.