Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trinh » canh tranh, hanh chinh
trinh huy » trinh thuy, trinh duy, trinh thuc
dong cong » duong cong, dung cong, dang cong
cong tinh » cong trinh, cong vinh, long tinh
doc hieu » toc thieu, hoc thieu, hoc hien
huy dong » ha dong
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu nganh - hanh trinh huy dong cong tinh toan ban~.
• Adding a wildcard symbol may retrieve word variants: doc hieu nganh - hanh trinh huy dong cong tinh toan ban*.