Perhaps you should try some spelling variations:
thanh thuoc » thanh phuoc, hanh thuoc, thanh thuong
thien thanh » tien thanh, thi thanh, hien hanh
hieu thien » hieu hien, chieu chien, dieu khien
xach tay » canh tay
thuoc va » thuc va, thuoc ma, thuong va
xanh di » danh di, vanh dai, xanh tai
va xanh » va danh, va hanh, va anh
sach ty » sach tu, sach thu, sach hay
nang xa » nang x, lang xa, nang ma
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((((sach ty) OR (xach tay))) or (sach y)) nang xa hoi. hieu thien thanh thuoc va xanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((((sach ty) OR (xach tay))) OR (sach y)) nang xa hoi. hieu thien thanh thuoc va xanh di cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((((sach ty) OR (xach tay))) or (sach y)) nang xa hoi. hieu thien thanh thuoc va xanh di cua tu*".