Perhaps you should try some spelling variations:
nang thuyet » tang huyet
thuyet do » thuyet co, thuyet hoa, thuyet dan
bien soan » bien so
binh van » dinh van, binh dan, binh tan
van cong » van dong, van phong, phan cong
mo phung » mo phong, so phuong, mon nhung
thi nang » thi cong, ki nang, thi hanh
cong mo » cong mot, cong so, cong co
do bien » doi bien, dot bien, do ben

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( binh van cong mo phung van ) or ( thi nang thuyet do bien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( binh van cong mo phung van ) OR ( thi nang thuyet do bien soan ))*.