Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
quang phat » nang phat, quang khai, hang phat
hien xanh » hien hanh, hien nhanh, chieu xanh
anh quang » anh xquang, anh quan, nhanh quang
phat dung » pham dung, phan dung, thuat dung
dung cong » dung trong
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 (thien thanh)) - anh quang phat dung cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (thien thanh)) - anh quang phat dung cong van toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (thien thanh)) - anh quang phat dung cong van toan ban*.