Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
dung phuong » dung thuong, bang phuong, dung chung
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
phuong van » phung van, phong van, phuong lan
tuong cua » truong cua, huong cua, thong cua
cua dung » cua dang, cua dong, qua dung
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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 sang) OR (chieu sach)) - thanh tuong cua dung phuong van toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) OR (chieu sach)) - thanh tuong cua dung phuong van toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) OR (chieu sach)) - thanh tuong cua dung phuong van toan cao*.