Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
cham loc » cham soc, chon loc, cham o
thanh vi » hanh vi, thanh va, thanh ve
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cuu tre » cua tre, cau tren, cau treo
loc va » hoc va, luc va
vi cuu » vi luu, vinh cuu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang ((o hoi) or (x ho)). hieu ve cham loc va thanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((o hoi) OR (x ho)). hieu ve cham loc va thanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((o hoi) or (x ho)). hieu ve cham loc va thanh vi cuu tre*.