Perhaps you should try some spelling variations:
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
hieu vu » hieu va, hieu ve, hieu su
va hanh » van hanh, va thanh, va danh
thai va » thai van
va tieu » van tieu, vay tieu, va dieu
y lang » o lang, _ lang, tay lang
vu cam » vu cham, vu cao, va cam
va han » va phan, van han, va hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y lang xa hoi. hieu vu cam xuc ((va han) OR (va hanh)) thai va tieu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y lang xa hoi. hieu vu cam xuc ((va han) OR (va hanh)) thai va tieu".
• Adding a wildcard symbol may retrieve word variants: su sach y lang xa hoi. hieu vu cam xuc ((va han) OR (va hanh)) thai va tieu*.