Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
anh trong » anh thuong, dinh trong, lang trong
trong cao » truong cao, trong cac, trong ca
dung cong » dung trong
cao dung » cao dang, cao dong, cao ung
cong tan » cong tac, cong san, cong thanh
tran tap » toan tap, tran tuan, trang tai
tran tan » tran tuan, tran van, tran thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) OR (hieu manh)) - anh trong cao dung cong tan ((tran tap) or (tran tan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - anh trong cao dung cong tan ((tran tap) OR (tran tan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - anh trong cao dung cong tan ((tran tap) or (tran tan))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - anh trong cao dung cong tan ((tran tap) or (tran tan))*.