Perhaps you should try some spelling variations:
trung tuan » trung thanh, tran tuan, truong thanh
lieu tinh » trieu tinh, diep tinh, bien tinh
hang cong » dang cong, hang nong, bang cong
cong dan » cong san, cong tan, huong dan
than cao » thai cao, than cap, than sao
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 tuan) or (trung tam)) hang cong dan ((than cao) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - hanh ((trung tuan) OR (trung tam)) hang cong dan ((than cao) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - hanh ((trung tuan) or (trung tam)) hang cong dan ((than cao) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh ((trung tuan) or (trung tam)) hang cong dan ((than cao) OR (toan cao))*.