Perhaps you should try some spelling variations:
trong van » trong cac
cau theo » cau thi, cau tao
lang van » dang van, tang van, hoang van
cua viet » ca viet, hoa viet, cua vat
lam xuc » cam xuc, lam duoc
va hanh » van hanh, va thanh, va danh
vu sach » vu bach, su sach, vu khach
hieu va » lieu va, hieu qua
xuc va » duc va, tuc va, luc va
va lam » van lam, va lap

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 y ((lang van) or (trong van)) hoi. hieu va lam xuc va hanh vi ((cua viet) or (cau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y ((lang van) OR (trong van)) hoi. hieu va lam xuc va hanh vi ((cua viet) OR (cau theo)).
• Adding a wildcard symbol may retrieve word variants: vu sach y ((lang van) or (trong van)) hoi. hieu va lam xuc va hanh vi ((cua viet) or (cau theo))*.