Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
ve cam » ve cham, ve cac, va cam
vi su » va su, ve su, ki su

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: ((su sach) OR (vu sach)) van ((nang xa) OR (nang ma)) hoi. hieu ve cam xuc van hanh vi su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) van ((nang xa) OR (nang ma)) hoi. hieu ve cam xuc van hanh vi su triet~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) van ((nang xa) OR (nang ma)) hoi. hieu ve cam xuc van hanh vi su triet*.