Perhaps you should try some spelling variations:
danh thanh » dinh thanh, dang thanh, nhanh thanh
thanh dan » thanh san, thanh van, thanh dat
sach thu » sach thue, sach thieu, sach tham
cac cuoc » cac nuoc, ca cuoc, cac quoc
sach ty » sach y, sach tu, xach tay
nang xa » nang x, lang xa, nang ma
cac suc » cao suc, cac nuoc, cac quoc
dan cua » dan ca, ban cua, dai cua

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 thu) or (sach ty)) nang xa hoi. lieu va ((cac suc) OR (cac cuoc)) danh thanh dan cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach thu) OR (sach ty)) nang xa hoi. lieu va ((cac suc) OR (cac cuoc)) danh thanh dan cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach thu) or (sach ty)) nang xa hoi. lieu va ((cac suc) OR (cac cuoc)) danh thanh dan cua vat".
• Adding a wildcard symbol may retrieve word variants: su ((sach thu) or (sach ty)) nang xa hoi. lieu va ((cac suc) OR (cac cuoc)) danh thanh dan cua vat*.