Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham duc » pham duc, cham soc, pham duy
bieu cua » dieu cua, hieu cua, ben cua
toc sach » hoc sach, doc sach, thuoc sach
lieu cua » dieu cua, hieu cua, lieu quan
duc van » duc va, duc tan, duc manh
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang co » nang cao, nang doc, nang noi
co hoi » co hoc, co loi
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) y nang co hoi. hieu ve cham duc van thanh ((lieu cua) or (bieu cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y nang co hoi. hieu ve cham duc van thanh ((lieu cua) OR (bieu cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y nang co hoi. hieu ve cham duc van thanh ((lieu cua) or (bieu cua)) tu".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) y nang co hoi. hieu ve cham duc van thanh ((lieu cua) or (bieu cua)) tu*.