Perhaps you should try some spelling variations:
nganh kiem » nganh kinh, anh kiem, khanh kiem
quyen tap » tuyen tap, quyen cap, huyen tam
luyen tap » tuyen tap, luyen thi
cac khoi » cac thoi, cac khoan, cach thoi
do nganh » doi nganh, da nganh, hoc nganh
thi cong » tai cong, thien cong
kiem y » hiem y

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((quyen tap) or (luyen tap)) cac khoi đe do nganh kiem y ((thi cong) or (thu cong)) cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((quyen tap) OR (luyen tap)) cac khoi đe do nganh kiem y ((thi cong) OR (thu cong)) cong.
• Adding a wildcard symbol may retrieve word variants: ((quyen tap) or (luyen tap)) cac khoi đe do nganh kiem y ((thi cong) or (thu cong)) cong*.