Perhaps you should try some spelling variations:
thuat chung » thuat chuong, thuat hung, thuat nhung
xuan thuat » xuan thuan, xuan thu, xuan thuy
cong quang » luong quang, thong quang, duong quang
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong lang » cong vang, cong luong, cong ngang
hoc hieu » hoc thieu, hoc hien, doc hieu
anh xuan » anh tuan, anh quan, thanh xuan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - anh xuan thuat chung ((cong lang) or (cong quang)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - anh xuan thuat chung ((cong lang) OR (cong quang)) toan cau*.