Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
trinh cua » trinh luat, trinh quan, trinh luan
dung cong » dung trong
doc hieu » toc thieu, hoc hien
tinh cua » sinh cua, tinh chat, tranh cua
cong anh » cong danh, dong anh, hong anh
anh nhan » danh nhan, doanh nhan, thanh nhan
nhan cau » nhanh cau, phan cau, nhan sau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (doc hieu)) xanh - hanh ((tinh cua) OR (trinh cua)) dung cong anh nhan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doc hieu)) xanh - hanh ((tinh cua) OR (trinh cua)) dung cong anh nhan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (doc hieu)) xanh - hanh ((tinh cua) OR (trinh cua)) dung cong anh nhan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doc hieu)) xanh - hanh ((tinh cua) OR (trinh cua)) dung cong anh nhan cau*.