Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
thanh va » thanh van, thanh ha, thanh ve
cau tren » cu tren, dau tren, ca tren
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
va cham » va chat, va tham
hanh va » hang va, hanh vi
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
luc va » duc va, tuc va, loc 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 san ky tang xa hoi. hieu va cham luc va ((thanh va) OR (hanh va)) cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky tang xa hoi. hieu va cham luc va ((thanh va) OR (hanh va)) cau tren".
• Adding a wildcard symbol may retrieve word variants: tu san ky tang xa hoi. hieu va cham luc va ((thanh va) OR (hanh va)) cau tren*.