Perhaps you should try some spelling variations:
hieu vien » hieu hien, thieu nien, hieu tieng
hieu viec » nhieu viec, hieu ve, sieu viet
dinh hai » dinh thai, tinh hai, dinh ha
te sach » toc sach
nang xa » nang x, lang xa, nang ma
dai lan » dai luan, dai han, dam lan
va dinh » van dinh, va kinh, va tinh
hai cua » thai cua, dai cua, hoi cua
y nang » ky nang, ly nang, v nang
lan va » luan va, lanh va, lan van
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: te sach y nang xa hoi. ((hieu vien) or (hieu viec)) dai lan va dinh hai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. ((hieu vien) OR (hieu viec)) dai lan va dinh hai cua tu.
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. ((hieu vien) or (hieu viec)) dai lan va dinh hai cua tu*.