Perhaps you should try some spelling variations:
nang dai » nang dau, nang tai, lang dai
hanh hai » thanh hai, nhanh hai, hang hai
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
su sach » so sach, vu sach
dai hai » dai han, dai hoi, dai tai
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
su sac » su cac, su xac
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) OR (su sach)) ky nang dai hai. hieu va cam luc va hanh hai ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su sach)) ky nang dai hai. hieu va cam luc va hanh hai ((cuu tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su sach)) ky nang dai hai. hieu va cam luc va hanh hai ((cuu tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su sach)) ky nang dai hai. hieu va cam luc va hanh hai ((cuu tre) or (cua te))*.