Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
tien manh » tien anh, tien thanh, tieng anh
mang quan » tang quan, hang quan, manh quan
nang quan » ban quan, nang suat
hoc tien » hoc tieng, hoc hien, hoc vien
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tien manh - nhanh ((mang quan) or (nang quan)) nhung cong thanh ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien manh - nhanh ((mang quan) OR (nang quan)) nhung cong thanh ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc tien manh - nhanh ((mang quan) or (nang quan)) nhung cong thanh ((toan cau) or (toan tap))*.