Perhaps you should try some spelling variations:
xanh tri » xanh tai, thanh tri, dinh tri
cham luc » cham soc, nhan luc, cham cuu
hieu ve » hieu va, hieu van
tri cuu » tri cua, tra cuu, trinh cuu
va xanh » va danh, va hanh, va anh
ve cham » va cham, ve chat, vu cham
cuu tre » cua tre, cau tren, cau treo
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
ma hoi » mai hoi, xa hoi, me hoi
luc va » duc va, tuc va, loc va
vu ban » tu ban, va ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ban ((ky tang) OR (ky dang)) ((ma hoi) or (ma hoa)). hieu ve cham luc va xanh tri cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ban ((ky tang) OR (ky dang)) ((ma hoi) OR (ma hoa)). hieu ve cham luc va xanh tri cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ban ((ky tang) OR (ky dang)) ((ma hoi) or (ma hoa)). hieu ve cham luc va xanh tri cuu tre*".