Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
ban hanh » ban hang
va thanh » gia thanh, ban thanh, va tinh
cau tren » cu tren, dau tren, ca tren
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
vi cau » va cau, ve cau, di cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang cao hoi. hieu van chat xuc ((ban hanh) or (va thanh)) vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang cao hoi. hieu van chat xuc ((ban hanh) OR (va thanh)) vi cau tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang cao hoi. hieu van chat xuc ((ban hanh) or (va thanh)) vi cau tren*.