Perhaps you should try some spelling variations:
thien van » thi van
nam quan » nam huan, sam quan, tam quan
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
va triet » va thiet, va trien, ve triet
tu sach » thu sach, su sach, te sach
nam qua » nam cua, nam xua, nam luat
nam mua » nam cua, nam xua, nam luat
y nang » ky nang, ly nang, v nang
dai va » mai va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang x hoi. thien van ((((nam quan) OR (nam qua))) or (nam mua)) van hanh dai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. thien van ((((nam quan) OR (nam qua))) OR (nam mua)) van hanh dai va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang x hoi. thien van ((((nam quan) OR (nam qua))) or (nam mua)) van hanh dai va triet*".