Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
toc sach » hoc sach, doc sach, thuoc sach
dang van » hoang van, hang va
cham tuc » nham thuc, pham thuc, cham soc
van anh » van thanh, tuan anh, van minh
van hoi » van hoa, van hoc, van hoe
hieu va » lieu va, hieu qua
doi cua » dai cua, hoi cua
di cua » dai cua, de cua, do cua
y dang » ky dang, 2 dang, _ dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach y dang van hoi. hieu va ((cham tuc) or (tham thuc)) van anh ((di cua) OR (doi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y dang van hoi. hieu va ((cham tuc) OR (tham thuc)) van anh ((di cua) OR (doi cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y dang van hoi. hieu va ((cham tuc) or (tham thuc)) van anh ((di cua) OR (doi cua)) te".
• Adding a wildcard symbol may retrieve word variants: toc sach y dang van hoi. hieu va ((cham tuc) or (tham thuc)) van anh ((di cua) OR (doi cua)) te*.