Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nang ma » tang ma, sang ma, nang cao
van lam » van nam
lam duc » lam duoc, pham duc, nam duoc
va danh » va dinh, va dan, va hanh
tai ky » thai ky, trai ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
cua tu » cua tuc, cua su, cua cu
hoa » khoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te tai ky nang ma hoi. hieu van lam duc ((hoa dan) or (va danh)) van ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te tai ky nang ma hoi. hieu van lam duc ((hoa dan) OR (va danh)) van ((cua te) OR (cua tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te tai ky nang ma hoi. hieu van lam duc ((hoa dan) or (va danh)) van ((cua te) OR (cua tu))*".