Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
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 cua) or (tang cua)) tong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh ((trung cua) OR (tang cua)) tong cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh ((trung cua) or (tang cua)) tong cong dan toan cao*.