Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nang son » nang song, nang soan, lang son
te sach » toc sach
sach ky » sac ky, sach y, sach ty
son hai » cong hai
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
cua tre » cua te, cuu tre, dua tren
va cam » va cham, va cac, va cao
anh di » danh di, xanh di, anh d

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 nang son hai. hieu va cam ((xuc ban) or (duc tan)) anh di ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang son hai. hieu va cam ((xuc ban) OR (duc tan)) anh di ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang son hai. hieu va cam ((xuc ban) or (duc tan)) anh di ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang son hai. hieu va cam ((xuc ban) or (duc tan)) anh di ((cua tre) OR (cua triet))*.