Perhaps you should try some spelling variations:
hien nhanh » thien thanh, tien thanh, dien thanh
hien xanh » chieu xanh, hien khanh, khien canh
hien hanh » dieu hanh
anh quang » anh xquang, anh quan, nhanh quang
quang vat » quang va, quang van, quang phat
dung cong » dung trong
vat dung » van dung, va dung, viet dung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban

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) OR (hien hanh)))) - anh quang vat dung cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (((hien nhanh) OR (hien hanh)))) - anh quang vat dung cong van toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (((hien nhanh) OR (hien hanh)))) - anh quang vat dung cong van toan ban*".