Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
cham loc » cham soc, chon loc, cham o
vinh cuu » dinh cuu, sinh cua, tinh cua
hieu va » lieu va, hieu qua
va cham » va chat, va tham
dinh cu » dinh cuu, dinh chuc, dinh chau
loc va » hoc va, luc va
o lai » o lao

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 lai) or (x ho)). hieu va cham loc va thanh ((vinh cuu) OR (dinh cu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((o lai) OR (x ho)). hieu va cham loc va thanh ((vinh cuu) OR (dinh cu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang ((o lai) or (x ho)). hieu va cham loc va thanh ((vinh cuu) OR (dinh cu)) tre".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((o lai) or (x ho)). hieu va cham loc va thanh ((vinh cuu) OR (dinh cu)) tre*.