Perhaps you should try some spelling variations:
thanh dat » thanh hai, thanh van, thanh ha
te sach » toc sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac

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 hoa. hieu ve cac duc va ((thanh dat) OR (thanh san)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang ma hoa. hieu ve cac duc va ((thanh dat) OR (thanh san)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ma hoa. hieu ve cac duc va ((thanh dat) OR (thanh san)) cua tre*.