Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
va dinh » van dinh, va kinh, va tinh
hieu va » lieu va, hieu qua
cua tuc » cua duc, cua tu, cua thuoc
tao hoi » tao khoi, tao boi, tay hoi
ky dang » ky nang, ky danh
ky sang » ky nang, ky tang, duy sang
va dan » ca dan, va dao, va dau
di cua » dai cua, doi cua, de cua
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ((ky sang) OR (ky dang)) tao hoi. hieu va cam xuc ((va dan) or (va dinh)) di cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((ky sang) OR (ky dang)) tao hoi. hieu va cam xuc ((va dan) OR (va dinh)) di cua tuc*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((ky sang) OR (ky dang)) tao hoi. hieu va cam xuc ((va dan) or (va dinh)) di cua tuc*".