Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
tan thanh » tran thanh, tang thanh, toan thanh
thanh cau » thanh chau, thanh mau, nhanh cau
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh ((((tang cua) OR (mang cua))) or (trung tuan)) nhung cong tan thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((((tang cua) OR (mang cua))) OR (trung tuan)) nhung cong tan thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh ((((tang cua) OR (mang cua))) or (trung tuan)) nhung cong tan thanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((((tang cua) OR (mang cua))) or (trung tuan)) nhung cong tan thanh cau*.