Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
thanh dung » thanh duong, thanh tung, thanh hung
tong thong » thong thong, dong thong, cong thong
hieu manh » chieu xanh, dieu hanh, hien hanh
thong dan » thong van, tuong dan, thong den
dung cua » dung luan, dung cho
cua tong » cua cong, cua dong, cua nong
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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 manh) OR (hieu nganh)) - thanh dung cua tong thong dan phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu manh) OR (hieu nganh)) - thanh dung cua tong thong dan phan cau*".