Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
kho tang » cao tang
cham duc » pham duc, cham soc, pham duy
thanh va » thanh van, hanh va, thanh ha
te sach » toc sach
ky tang » ky dang, ky trong, tay tang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
ha hoi » hoa hoi, ha noi, xa hoi
va cua » va chua, via cua, ca cua

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 ((((ky tang) OR (kho tang))) or (ky nang)) ha hoi. hieu ve cham duc tan thanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((((ky tang) OR (kho tang))) OR (ky nang)) ha hoi. hieu ve cham duc tan thanh va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((((ky tang) OR (kho tang))) or (ky nang)) ha hoi. hieu ve cham duc tan thanh va cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((((ky tang) OR (kho tang))) or (ky nang)) ha hoi. hieu ve cham duc tan thanh va cua tre*.