Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
thu sach » thuat sach, thuoc sach, thu hoach
van phan » van phong, van thanh, luan phan
truc van » truc va, thuc van, truc ban
tap cua » tap quan, tiep cua
lap cua » lai cua, lam cua, ap cua
tu sach » su sach, te sach, tu cach
hieu vu » hieu va, hieu ve, hieu su
nang ho » nang hoc, nang co, tang ho
vu cham » va cham, vu kham, tu cham
ho hoi » hoc hoi, hoa hoi, hoi hoi
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) OR (thu sach)) y nang ho 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) OR (thu sach)) y nang ho hoi. hieu vu cham truc van phan ((lap cua) OR (tap cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) y nang ho hoi. hieu vu cham truc van phan ((lap cua) or (tap cua)) triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) y nang ho hoi. hieu vu cham truc van phan ((lap cua) or (tap cua)) triet*.