Perhaps you should try some spelling variations:
thanh tung » thanh cong
cua phuong » cuu phuong, cuc phuong, luan phuong
phuong con » thuong con, phuong ngon, phuong dong
tieu sang » chieu sang, tieu dung, tiem nang
tung cua » trung cua, tuong cua, dung cua
con doan » cong doan, chan doan, cong hoan
phan dau » phan tu, hang dau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - thanh tung cua phuong con doan ((phan lap) OR (phan dau))~.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - thanh tung cua phuong con doan ((phan lap) or (phan dau))*.