Perhaps you should try some spelling variations:
thien van » thi van
khach ky » hanh ky, thanh ky
va thanh » gia thanh, ban thanh, va tinh
van cau » van dau, van hau, van chat
va hanh » van hanh, va danh, ban hanh
su tien » su kien, su hien, tu tieng
cau tu » dau tu, cau truc
ki su » ky su

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

• Performing a fuzzy search may retrieve terms with similar spellings: vay khach ky nang x ho. thien van cau tu ((va thanh) or (va hanh)) ki su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vay khach ky nang x ho. thien van cau tu ((va thanh) OR (va hanh)) ki su tien.
• Adding a wildcard symbol may retrieve word variants: vay khach ky nang x ho. thien van cau tu ((va thanh) or (va hanh)) ki su tien*.