Perhaps you should try some spelling variations:
cong luong » cong thuong, nang luong, cong dong
hieu tinh » chieu tinh, kieu tinh, hieu binh
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh dung » thanh dung, anh dung, hanh dong
luan cong » luat cong, luong cong, luan chung
luong dan » huong dan, luong dao, luong van
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

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