Perhaps you should try some spelling variations:
ly quang » le quang, vu quang
cac truc » cau truc, cac tru, cac trung
danh tai » doanh tai, dinh tai, hanh tai
duc tien » duc thien, luc tieng, thuc tien
co sach » bo sach, cuon sach, hoc sach
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
tai duc » tai cuc, mai duc, tai du

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ((ly hang) OR (ly quang)) xa hoi. hieu va cac truc va danh tai duc tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach ((ly hang) OR (ly quang)) xa hoi. hieu va cac truc va danh tai duc tien".
• Adding a wildcard symbol may retrieve word variants: co sach ((ly hang) OR (ly quang)) xa hoi. hieu va cac truc va danh tai duc tien*.