Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
doc lieu » duoc lieu, doc hieu, du lieu
tang qua » tang quan, tang cua, tang quang
tang quy » tan quy, nang quy, tang quan
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc lieu tinh - hanh ((tang qua) OR (tang quy)) trong cong dan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc lieu tinh - hanh ((tang qua) OR (tang quy)) trong cong dan than cap".
• Adding a wildcard symbol may retrieve word variants: doc lieu tinh - hanh ((tang qua) OR (tang quy)) trong cong dan than cap*.