Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thieu anh » chieu xanh, thien danh, thieu nhi
thien anh » thien danh, tien anh, thien thanh
tinh tran » tinh trang, tinh toan, tinh than
tran khoa » toan khoa, san khoa, nhan khoa
khoa hung » khoa dung, khoa ung, khoa trung
hung cong » nhung cong, hung cuong, phung cong
cong toan » cong tan, cong hoan, cong tuan
toan phan » thanh phan, toan ban, hoa phan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((thieu anh) OR (thien anh))) or (chieu sach)) - tinh tran khoa hung cong toan phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu anh) OR (thien anh))) OR (chieu sach)) - tinh tran khoa hung cong toan phan lap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((thieu anh) OR (thien anh))) or (chieu sach)) - tinh tran khoa hung cong toan phan lap*".