Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thien van » thi van
thi nang » thi cong, ki nang, thi hanh
thuoc va » thuc va, thuoc ma, thuong va
su sach » so sach, vu sach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cuu tre » cua tre, cau tren, cau treo
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
vi cuu » vi luu, vinh cuu
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 ly nang x hoi. ((lieu va) or (((thien van) or (thi nang)))) nam thuoc va danh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang x hoi. ((lieu va) OR (((thien van) OR (thi nang)))) nam thuoc va danh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: su sach ly nang x hoi. ((lieu va) or (((thien van) or (thi nang)))) nam thuoc va danh vi cuu tre*.