Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
nang hoc » nang doc, nang luc, dong hoc
truc van » truc va, thuc van, truc ban
van phan » van phong, van thanh, luan phan
tu sach » thu sach, su sach, te sach
hoc hoi » hoc khoi, hoc hoa, hoc noi
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
lap cua » lai cua, lam cua, ap cua
tap cua » tap quan, tiep cua
y nang » ky nang, ly nang, v nang

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