Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
phuong cong » phong cong, phung cong, phuong hoang
phuong dong » phuong dung, phuong hoang, chuong duong
thanh toan » thanh hoa, thanh san, tinh toan
hien xanh » hien hanh, hien nhanh, chieu xanh
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 hien xanh - ((nhanh quang) or (tranh quang)) va ((phuong cong) OR (phuong dong)) thanh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((nhanh quang) OR (tranh quang)) va ((phuong cong) OR (phuong dong)) thanh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((nhanh quang) or (tranh quang)) va ((phuong cong) OR (phuong dong)) thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((nhanh quang) or (tranh quang)) va ((phuong cong) OR (phuong dong)) thanh toan cao*.