Perhaps you should try some spelling variations:
chat truc » cau truc, chat xuc
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
va chat » van chat, va phat, cao chat
sach ly » sach y, sach ty, sach hay
hieu va » lieu va, hieu qua
hang ca » hang va, nang cao, hang tai
sach lo » sach dao, sach doi, sach hoi
ca hoi » cau hoi, cua hoi, xa hoi
vi cua » vai cua, di cua
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ly) OR (sach lo)) hang ca hoi. hieu va chat truc ((va hanh) OR (van hanh)) vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ly) or (sach lo)) hang ca hoi. hieu va chat truc ((va hanh) OR (van hanh)) vi cua te~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ly) or (sach lo)) hang ca hoi. hieu va chat truc ((va hanh) OR (van hanh)) vi cua te*.