Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
ve triet » va trien, su triet
vu sach » vu bach, su sach, vu khach
cac thu » cach thuc, cac thoi
va hanh » van hanh, va danh, ban hanh
y nang » ky nang, ly nang, v nang
nam tu » nam thu, nam thuc
gi ve » gia ve, gi de, gi he

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang x ho. hieu van ((cac thu) or (nam tu)) ((va thanh) or (va hanh)) gi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang x ho. hieu van ((cac thu) OR (nam tu)) ((va thanh) OR (va hanh)) gi ve triet.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang x ho. hieu van ((cac thu) or (nam tu)) ((va thanh) or (va hanh)) gi ve triet*.