Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh thuoc » thanh phuoc, hanh thuoc, thanh thuong
hieu thien » hieu hien, chieu chien, dieu khien
thuoc va » thuc va, thuoc ma, thuong va
va xanh » va danh, va hanh, va anh
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
di cua » dai cua, doi cua, do cua
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: bo ((sach ty) or (sach y)) nang xa hoi. hieu thien thanh thuoc va xanh ((di cua) OR (de cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo ((sach ty) OR (sach y)) nang xa hoi. hieu thien thanh thuoc va xanh ((di cua) OR (de cua)) tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo ((sach ty) or (sach y)) nang xa hoi. hieu thien thanh thuoc va xanh ((di cua) OR (de cua)) tu*".