Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham truc » cau truc, nham thuc, pham thuc
van hanh » van thanh, ban hanh, van ban
van anh » van thanh, tuan anh, van minh
hieu va » lieu va, hieu qua
vu sach » vu bach, su sach, vu khach
nang xa » lang xa, nang ma, mang xa
va cham » va chat, va tham
sach v » sach va, sach y, sach 2
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach v ((nang xa) or (nang x)) hoi. hieu va cham truc ((van hanh) or (van anh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach v ((nang xa) OR (nang x)) hoi. hieu va cham truc ((van hanh) OR (van anh)) di cua triet.
• Adding a wildcard symbol may retrieve word variants: vu sach v ((nang xa) or (nang x)) hoi. hieu va cham truc ((van hanh) or (van anh)) di cua triet*.