Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
trung cay » trung cap, rung cay, trung ca
trong cay » trong cac, trong ca, giong cay
tac thanh » bac thanh, cac thanh, tcc thanh
thanh cau » thanh chau, thanh mau, nhanh cau
cong tac » cong ty

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 - thanh ((trung cay) OR (trong cay)) trong cong tac thanh cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - thanh ((trung cay) OR (trong cay)) trong cong tac thanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - thanh ((trung cay) OR (trong cay)) trong cong tac thanh cau*.