Perhaps you should try some spelling variations:
cac trieu » cac tieu, cau trieu, cac kieu
bach tuoc » sach duoc, sach nuoc
hanh tai » thanh tai, hang tai, han tai
tai cac » tai cuc
va hanh » van hanh, va thanh, va danh
su sach » so sach
hieu va » lieu va, hieu qua
vu sach » vu bach, vu khach
bac tuc » bac tu, bac thua
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu sach)) y nang x hoi. hieu va ((bac tuc) or (bach tuoc)) va hanh tai cac trieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang x hoi. hieu va ((bac tuc) OR (bach tuoc)) va hanh tai cac trieu.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y nang x hoi. hieu va ((bac tuc) or (bach tuoc)) va hanh tai cac trieu*.