Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
tieu tich » trieu tinh, tieu trinh, thu tich
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh han » trinh quan
han nhung » hanh nhung, hon nhung, ban nhung
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tich) OR (lieu tinh)) - hanh trinh han nhung cong san ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu tich) OR (lieu tinh)) - hanh trinh han nhung cong san ((toan cao) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tich) OR (lieu tinh)) - hanh trinh han nhung cong san ((toan cao) or (toan ban))*.