Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
thanh vai » thanh hai, thanh tai, thanh oai
thanh van » thanh san, thanh toan, thanh phan
viec cac » vien cac, viec cua, viec lam
va triet » va thiet, va trien, ve triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
dan van » dang van, doan van, dao van

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 ky lang xa hoi. hieu viec cac dan van ((thanh vai) or (thanh van)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky lang xa hoi. hieu viec cac dan van ((thanh vai) OR (thanh van)) va triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky lang xa hoi. hieu viec cac dan van ((thanh vai) or (thanh van)) va triet*.