Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trinh » canh tranh, hanh chinh
tong huong » thong huong, tong thuong, cong huong
hieu xanh » chieu xanh, hieu manh, dieu hanh
trinh han » trinh quan
huong van » huong dan, duong van, hong van
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu

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 xanh) or (hieu nganh)) - hanh trinh han tong huong van tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu nganh)) - hanh trinh han tong huong van tuan cau.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (hieu nganh)) - hanh trinh han tong huong van tuan cau*.