Perhaps you should try some spelling variations:
lam thuoc » nam thuoc, am thuc, cay thuoc
thien van » thi van
thu sach » tu sach, thuat sach, thuoc sach
lam duoc » nam duoc, luat duoc, tao duoc
thi hanh » thi thanh
sach ly » sach y, sach lo, sach ty
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
va tinh » may tinh
tinh de » tinh da, sinh de, tinh he
cua tre » cua te, cuu tre, cua triet
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ly nang xa hoi. ((thien van) or (thi hanh)) ((lam duoc) or (lam thuoc)) va tinh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ly nang xa hoi. ((thien van) OR (thi hanh)) ((lam duoc) OR (lam thuoc)) va tinh de cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ly nang xa hoi. ((thien van) or (thi hanh)) ((lam duoc) or (lam thuoc)) va tinh de cua tre*.