Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
thang cua » thong cua, than cua, tang cua
hoc hieu » hoc thieu, hoc hien, doc hieu
hang cua » mang cua, hang ca, huong cua
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - hanh ((thang cua) or (hang cua)) thong cong tac ((toan cau) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh ((thang cua) OR (hang cua)) thong cong tac ((toan cau) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh ((thang cua) or (hang cua)) thong cong tac ((toan cau) or (van ban))*.