Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
hanh trinh » canh tranh, hanh chinh
thuat dung » thuat hung, thuat ung, thuat xung
mot chieu » doi chieu, ho chieu
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
manh toan » thanh toan, anh tuan

You may be able to get more results by adjusting your search query.

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