Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, nhan sinh
hanh trinh » canh tranh, hanh chinh
chau tinh » cuu tinh, ha tinh, cua tinh
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
kha nang » phap nang, ky nang, ki nang
toan cau » toan cao, toan ban, toan tap
ho chau » ha chau, ho chu, o chau
da nang » cam nang, cao nang

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: ho chau tinh - ((nhanh tinh) OR (hanh trinh)) ((da nang) OR (kha nang)) cong hach toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chau tinh - ((nhanh tinh) or (hanh trinh)) ((da nang) OR (kha nang)) cong hach toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho chau tinh - ((nhanh tinh) or (hanh trinh)) ((da nang) OR (kha nang)) cong hach toan cau*.