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
trong dang » truong dang, trong dan, trong dong
trong tan » trong quan, trong cac, trong ca
khi sinh » ki sinh, thi sinh, khoe sinh
toan cau » toan cao, toan ban, toan tap

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: doi khi sinh - hanh trinh thuat dung ((trong dang) OR (trong tan)) toan cau~.
• Adding a wildcard symbol may retrieve word variants: doi khi sinh - hanh trinh thuat dung ((trong dang) or (trong tan)) toan cau*.