Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trang luan » tang luan, tranh luan, trang tuan
trinh luan » trinh quan, trinh han, trinh toan
hoc thieu » toc thieu, hoc hien
dung manh » duong manh, dung danh, hung manh
manh toan » thanh toan, anh tuan, tinh toan
toan cau » 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 ((trang luan) or (((trinh luan) OR (trinh luat)))) ung dung manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((trang luan) OR (((trinh luan) OR (trinh luat)))) ung dung manh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((trang luan) or (((trinh luan) OR (trinh luat)))) ung dung manh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((trang luan) or (((trinh luan) OR (trinh luat)))) ung dung manh toan cau*.