Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
minh vai » minh va, minh hai, minh ai
mai khoi » mai khoa, tai khoa, cac khoi
vai cuu » vai cua
dai xuc » dai luoc, dai thuc, dai truc
te sach » toc sach
ly vang » ly hang, ly van, ly quang
ly nang » ky nang, ly hang, ly quang
cuu tre » cua tre, cau tren, cau treo
dai xu » dai tu, dao xu, hai xu

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)) mai khoi. hieu vien ((dai xuc) OR (dai xu)) van minh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ly nang) OR (ly vang)) mai khoi. hieu vien ((dai xuc) OR (dai xu)) van minh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ly nang) or (ly vang)) mai khoi. hieu vien ((dai xuc) OR (dai xu)) van minh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ly nang) or (ly vang)) mai khoi. hieu vien ((dai xuc) OR (dai xu)) van minh vai cuu tre*.