Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung phap » trung phan, trong phap, trung phat
phap thong » phap phong, phap chong, pho thong
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hiem ngan » kim ngan, viem gan
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((hieu manh) or (hiem ngan))) or (chieu sach)) - thanh trung phap thong cong tan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((hieu manh) OR (hiem ngan))) OR (chieu sach)) - thanh trung phap thong cong tan chan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((((hieu manh) or (hiem ngan))) or (chieu sach)) - thanh trung phap thong cong tan chan cau*.