Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
hanh dai » hanh tai, hanh dao, vanh dai
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau treo
va hanh » van hanh, va thanh, va danh
te sach » toc sach
cac duc » cac du, cao duc, cac nuoc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
cac dac » cac dan, cac dai, cac bac

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 ty nang xa hoi. hieu va ((cac duc) or (cac dac)) va hanh dai ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. hieu va ((cac duc) OR (cac dac)) va hanh dai ((cuu tre) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. hieu va ((cac duc) or (cac dac)) va hanh dai ((cuu tre) OR (cau tren))*".