Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cac » thien cac, vien cac, hieu cac
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
cac xuc » cam xuc, cac nuoc, chat xuc
te sach » toc sach
ly vang » ly hang, ly van, ly quang
ly nang » ky nang, ly hang, ly quang
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ly nang) OR (ly vang)) xa hoi. hieu hien cac xuc ((van hanh) or (ban hanh)) dai cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ly nang) OR (ly vang)) xa hoi. hieu hien cac xuc ((van hanh) OR (ban hanh)) dai cua cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ly nang) OR (ly vang)) xa hoi. hieu hien cac xuc ((van hanh) or (ban hanh)) dai cua cu".
• Adding a wildcard symbol may retrieve word variants: te sach ((ly nang) OR (ly vang)) xa hoi. hieu hien cac xuc ((van hanh) or (ban hanh)) dai cua cu*.