Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
dung huong » dung thuong, dung phuong, dong huong
hieu lang » chieu sang, hieu quang, nhieu tang
thanh lap » thanh san, phan lap, thanh hai
tung van » trung van, tang van, dung van
van dung » van dong, xay dung, tin dung
than cap » khan cap, thanh cac, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu sach)) - thanh tung van dung huong dan ((than cap) OR (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sach)) - thanh tung van dung huong dan ((than cap) OR (thanh lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu sach)) - thanh tung van dung huong dan ((than cap) OR (thanh lap))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sach)) - thanh tung van dung huong dan ((than cap) OR (thanh lap))*.