Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
van thanh » ban thanh, van tuan
thu sach » thuat sach, thuoc sach, thu hoach
truc van » truc va, thuc van, truc ban
tap cua » tap quan, tiep cua
tu sach » su sach, te sach, tu cach
hieu va » lieu va, hieu qua
nang ho » nang hoc, nang co, tang ho
va cham » va chat, va tham
ho hoi » hoc hoi, hoa hoi, hoi hoi
y nang » ky nang, ly nang, v nang
ap cua » gap cua, lap cua

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) or (thu sach)) y nang ho hoi. hieu va cham truc van thanh ((ap cua) or (tap cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y nang ho hoi. hieu va cham truc van thanh ((ap cua) OR (tap cua)) triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) y nang ho hoi. hieu va cham truc van thanh ((ap cua) or (tap cua)) triet*.