Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cua viet » ca viet, hoa viet, cua vat
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
nam duc » nam duoc, pham duc, nam thuc
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
tu dan » tuc dan, tu ban, cu dan
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan ((ky lang) or (ky tang)) xa hoi. hieu van nam duc va danh di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan ((ky lang) OR (ky tang)) xa hoi. hieu van nam duc va danh di cua viet.
• Adding a wildcard symbol may retrieve word variants: tu dan ((ky lang) or (ky tang)) xa hoi. hieu van nam duc va danh di cua viet*.