Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trung » thanh trung, hanh trang, manh trung
hoc thieu » toc thieu, hoc hien
hua khong » hoa khong, cua khong, hoac khong
trinh han » trinh quan
cua tong » cua cong, cua nong, cua song
cua dong » chua dong, cua cong, cua dang
han cao » han cho, han gao, hoang cao

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 xanh - hanh trung ((((cua tong) OR (cua dong))) or (hua khong)) cong trinh han cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trung ((((cua tong) OR (cua dong))) OR (hua khong)) cong trinh han cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trung ((((cua tong) OR (cua dong))) or (hua khong)) cong trinh han cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trung ((((cua tong) OR (cua dong))) or (hua khong)) cong trinh han cao*.