Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
tong cong » trong cong, cong cong, dung cong
trinh han » trinh quan
theo chu » theo chieu, cho chu, chao chu
tang cua » mang cua, hang cua, tang luan
cua tong » cua cong, cua dong, cua nong
han cau » hang cau, phan cau, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (hoc thieu)) xanh - hanh tang cua tong cong trinh han cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (hoc thieu)) xanh - hanh tang cua tong cong trinh han cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (hoc thieu)) xanh - hanh tang cua tong cong trinh han cau*.