Perhaps you should try some spelling variations:
tuan thong » toan thong, tran thong, tuan phong
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tran » hanh trang, thanh tran, hanh tram
tran tuan » tran xuan, tran quang, tran thanh
trinh san » trinh han, trinh quan, trinh toan
san tay » ban tay, dan tay, han tay

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 lang) or (chieu xanh)) - hanh tran tuan thong cong trinh san tay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (chieu xanh)) - hanh tran tuan thong cong trinh san tay.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu lang) or (chieu xanh)) - hanh tran tuan thong cong trinh san tay*.