Perhaps you should try some spelling variations:
cham loc » cham soc, chon loc, cham o
vinh cuu » sinh cua, dinh cu, tinh cua
dinh cuu » dinh chi
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va tinh » may tinh
mo hoc » mon hoc, co hoc
loc va » hoc va, luc va

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