Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cau tre » cau tren, cau treo, cuu tre
cau tra » ca tra, cau ra, cau truc
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 y nang xa hoi. hieu van cam duc va hanh di ((cau tre) OR (cau tra))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. hieu van cam duc va hanh di ((cau tre) OR (cau tra))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu van cam duc va hanh di ((cau tre) OR (cau tra))*.