Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
sinh cua » manh cua, dinh cuu, sinh va
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 - hanh ((sinh cua) OR (trinh quan)) thong cong tan ((toan cao) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((sinh cua) or (trinh quan)) thong cong tan ((toan cao) or (toan tap))*.