Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vat dung » van dung, viet dung, mat duong
cam tuc » cam xuc, cam tu, nam thuc
doi cua » dai cua, hoi cua
va dung » van dung, va duong, va ung
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
nang xa » lang xa, nang ma, mang xa
ve cam » ve cham, ve cac, va cam

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 ky ((nang xa) or (nang x)) hoi. hieu ve cam tuc ((va dung) or (vat dung)) doi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky ((nang xa) OR (nang x)) hoi. hieu ve cam tuc ((va dung) OR (vat dung)) doi cua triet.
• Adding a wildcard symbol may retrieve word variants: vu sach ky ((nang xa) or (nang x)) hoi. hieu ve cam tuc ((va dung) or (vat dung)) doi cua triet*.