Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
hieu van » thien van, lieu va, hieu ve
vai cua » dai cua, hai cua, lai cua
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
luc van » luoc van, luu van, duc van
hieu va » lieu va, hieu qua
su sac » su sach, su cac
su xac » pu xac, su cac
cua tu » cua tuc, cua su, cua cu

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

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