Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
lao truong » lap truong, lam truong, cao truong
hinh sinh » tinh sinh, hinh dinh, hinh kinh
theo chu » theo chieu, cho chu, theo yeu
chao chu » cho chu, cua chu, cao cho
sinh lao » tinh lao, sinh lam, sinh ly
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (chao chu)) tinh - hinh sinh lao truong cong san ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) OR (chao chu)) tinh - hinh sinh lao truong cong san ((toan cao) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) OR (chao chu)) tinh - hinh sinh lao truong cong san ((toan cao) or (toan ban))*.