Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trinh quan » tinh quang, trinh luat, trinh han
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trinh cua » trinh luat, trinh luan, trinh chat
tinh cua » sinh cua, tinh chat, tranh cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 cong dan 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 cong dan 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 cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((((trinh cua) OR (trinh quan))) or (tinh cua)) thong cong dan toan cao*.