Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
quang cua » quan cua, quang tuan, dung cua
van cong » van dong, van phong, phan cong
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban
toan tap » toan ban

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: hoc thieu xanh - nhanh ((quang cua) OR (quang huy)) van cong tan ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - nhanh ((quang cua) OR (quang huy)) van cong tan ((toan cao) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - nhanh ((quang cua) OR (quang huy)) van cong tan ((toan cao) or (toan tap))*.