Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trinh quan » tinh quang, trinh luat, trinh han
thong dong » thong duong, thuong dong, thong cong
hoc thieu » toc thieu, hoc hien
trinh cua » trinh luat, trinh luan, trinh chat
tinh cua » sinh cua, tinh chat, tranh cua
dong von » dung von, dong co, dong hoc
von toan » van toan, mon toan, von doanh
toan cao » toan ban, toan tap

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