Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc chieu » hoc thieu, ho chieu, hoc dieu
tranh cua » doanh cua, manh cua
cua hoang » cua hang, quan hoang, tuan hoang
luong tai » dung tai, luong va
vuong tat » vuong thi, tuong tac, duong tai
quan cau » quang cao, toan cau, quan ha

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 chieu) OR (hoc hien)) xanh - hanh tranh cua hoang ((luong tai) OR (vuong tat)) quan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) xanh - hanh tranh cua hoang ((luong tai) or (vuong tat)) quan cau~".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) xanh - hanh tranh cua hoang ((luong tai) or (vuong tat)) quan cau*.