Perhaps you should try some spelling variations:
thanh manh » thanh anh, thanh minh, thanh lanh
va thanh » gia thanh, ban thanh, va tinh
cham loc » cham soc, chon loc, cham o
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
cua tre » cuu tre, cua triet, dua tren
loc va » hoc va, luc va
cua te » cua tu
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 vu cham loc va thanh manh ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((o hoi) OR (x ho)). hieu vu cham loc va thanh manh ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang ((o hoi) or (x ho)). hieu vu cham loc va thanh manh ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((o hoi) or (x ho)). hieu vu cham loc va thanh manh ((cua tre) OR (cua te))*.