Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trong » hanh trang, anh trong, hinh trong
trong quan » thong quan, tong quan, thong quang
dung quang » dang quang, dung quan, luong quang
quang tran » quang tuan, quang trung, quang thanh
hien xanh » hien hanh, chieu xanh, hien khanh
quan dung » quang dung, quan duong, qua dung
dung dung » ung dung, dung ung, dung dong
tran cao » toan cao, tran chau, trang cho

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) OR (hien nhanh)) - hanh trong quan dung dung quang tran cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (hien nhanh)) - hanh trong quan dung dung quang tran cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (hien nhanh)) - hanh trong quan dung dung quang tran cao*.