Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
hanh de » hanh ve, hanh kem
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu va » lieu va, hieu qua
hanh di » hanh vi, hang di, danh di
cam luc » cam xuc, cau luc
su hai » su tai
luc va » duc va, tuc va, loc va
hai ky » thai ky, hoi ky, hai ly
ha hoi » ha noi, xa hoi, va hoi
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: su hai ky nang ((ha hoi) or (hoa hoi)). hieu va cam luc va ((hanh di) OR (hanh de)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su hai ky nang ((ha hoi) OR (hoa hoi)). hieu va cam luc va ((hanh di) OR (hanh de)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su hai ky nang ((ha hoi) or (hoa hoi)). hieu va cam luc va ((hanh di) OR (hanh de)) cua tre".
• Adding a wildcard symbol may retrieve word variants: su hai ky nang ((ha hoi) or (hoa hoi)). hieu va cam luc va ((hanh di) OR (hanh de)) cua tre*.