Perhaps you should try some spelling variations:
trong trinh » trong tinh, trang trinh, trong thinh
thieu xanh » chieu xanh, hieu manh, thien anh
trinh toan » tinh toan, thanh toan, trinh han
hoc thieu » toc thieu, hoc hien
cua dung » cua dang, qua dung, cua nhung
cua rung » cua trung, cua rang, cua truong
cua dong » chua dong, cua cong, cua dang
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 - canh tranh ((((cua dung) or (cua rung))) or (cua dong)) trong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh ((((cua dung) OR (cua rung))) OR (cua dong)) trong trinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh ((((cua dung) or (cua rung))) or (cua dong)) trong trinh toan cau*.