Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
tan thanh » tran thanh, tang thanh, toan thanh
thanh lai » thanh hai, thanh lap, thanh loi
chau phu » chau phi, chau au, chau tho
ky lang » ky dang, ky tang, tay lang
van hoi » van hoa, van hoc, van hoe
chau su » chau au, achat su
du tan » duc tan, duy tan, du tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ((ky lang) or (ky nang)) van hoi. lieu va cac du tan thanh lai ((chau su) OR (chau phu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ((ky lang) OR (ky nang)) van hoi. lieu va cac du tan thanh lai ((chau su) OR (chau phu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ((ky lang) or (ky nang)) van hoi. lieu va cac du tan thanh lai ((chau su) OR (chau phu))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((ky lang) or (ky nang)) van hoi. lieu va cac du tan thanh lai ((chau su) OR (chau phu))*.