Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thanh vai » thanh hai, thanh tai, thanh oai
cham duc » pham duc, cham soc, pham duy
te sach » toc sach
duc van » duc va, duc tan, duc manh
ve cham » va cham, ve chat, vu cham
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, me hoi

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