Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
thanh lap » thanh san, phan lap, thanh hai
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
van hoe » van hoc, van hieu, van hien
lap cua » lai cua, tap cua, lam cua
du tan » duc tan, duy tan, du tap
cua su » qua su

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 ky lang ((van hoe) OR (van hoa)). lieu va cac du tan thanh lap cua su~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky lang ((van hoe) OR (van hoa)). lieu va cac du tan thanh lap cua su".
• Adding a wildcard symbol may retrieve word variants: thu sach ky lang ((van hoe) OR (van hoa)). lieu va cac du tan thanh lap cua su*.