Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cam » van nam, van lam, van cau
chu thi » chuc thi, cau thi, thuc thi
danh va » doanh va, hanh va, anh va
va danh » va dinh, va dan, va hanh
cam loc » cam lo
te sach » toc sach
dai moi » doi moi, dai hoi
ky dang » ky nang
ky danh » ky anh
loc va » hoc va, luc va
thich » which, tich, trich

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 danh) or (ky dang)) dai moi. hieu van cam loc va danh va ((chu thi) OR (chu thich))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky danh) OR (ky dang)) dai moi. hieu van cam loc va danh va ((chu thi) OR (chu thich))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky danh) or (ky dang)) dai moi. hieu van cam loc va danh va ((chu thi) OR (chu thich))*".