Perhaps you should try some spelling variations:
sach tru » sach truc, sach thu, sach tu
tru nang » tra nang, tri nang, truc nano
van hanh » van thanh, ban hanh, van anh
doi cua » dai cua, hoi cua
vai cua » dai cua, hai cua, lai cua
vu sach » vu bach, su sach, vu khach
va hanh » va thanh, va danh, ban hanh
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac
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: vu sach tru nang x hoi. hieu ve cac xuc ((va hanh) OR (van hanh)) ((vai cua) or (doi cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach tru nang x hoi. hieu ve cac xuc ((va hanh) OR (van hanh)) ((vai cua) OR (doi cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach tru nang x hoi. hieu ve cac xuc ((va hanh) OR (van hanh)) ((vai cua) or (doi cua)) triet*".