Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trung » thanh trung, hanh trang, danh trung
manh trung » manh tung, thanh trung, manh hung
hoac khong » hoa khong, hoc khong, hay khong
khong cang » thong cong, hong bang, khong dung
hoc thieu » toc thieu, hoc hien
cang dan » cong dan, tang dan, canh dan
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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) or (manh trung)) hoac khong cang dan ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh trung) OR (manh trung)) hoac khong cang dan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hanh trung) or (manh trung)) hoac khong cang dan ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trung) or (manh trung)) hoac khong cang dan ((toan cau) OR (toan tap))*.