Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
cao thuong » cao truong, ca thuong, cho thuong
thuong con » thuong dong, truong cong, thong cong
hieu manh » chieu xanh, hieu nganh, hien hanh
tung cao » nung cao, truong cao, trung cap
dan chan » dan gian, dan ca, van chat
con dan » cong dan, co dan, con ban
chan tu » phan tu, han tu, chon tu

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 manh) OR (dieu hanh))) or (chieu sach)) - thanh tung cao thuong con dan chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu manh) OR (dieu hanh))) OR (chieu sach)) - thanh tung cao thuong con dan chan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((hieu manh) OR (dieu hanh))) or (chieu sach)) - thanh tung cao thuong con dan chan tu".
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu manh) OR (dieu hanh))) or (chieu sach)) - thanh tung cao thuong con dan chan tu*.