Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
vu cham » va cham, vu kham, tu cham
hanh va » hang va, hanh vi
hanh ve » hanh vi, hanh kem
luc van » luoc van, luu van, duc van
thu san » thuy san, thu ban, phu san
hieu vu » hieu va, hieu ve, hieu su
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu san ((ky tang) or (ky dang)) ha noi. hieu vu cham luc van ((hanh ve) OR (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu san ((ky tang) OR (ky dang)) ha noi. hieu vu cham luc van ((hanh ve) OR (hanh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu san ((ky tang) or (ky dang)) ha noi. hieu vu cham luc van ((hanh ve) OR (hanh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thu san ((ky tang) or (ky dang)) ha noi. hieu vu cham luc van ((hanh ve) OR (hanh va)) cua tre*.