Perhaps you should try some spelling variations:
hien hach » thien hach, hien hanh, hien nhanh
hanh mang » nhanh mang, hanh trang, nhanh lang
cau duong » hai duong, con duong
van duong » van dong, van phong, hai duong
van dung » van dong, xay dung, tin dung
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hach - hanh mang ((cau duong) or (((van duong) OR (van dung)))) cong tan tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hach - hanh mang ((cau duong) OR (((van duong) OR (van dung)))) cong tan tran ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hach - hanh mang ((cau duong) or (((van duong) OR (van dung)))) cong tan tran ban".
• Adding a wildcard symbol may retrieve word variants: hoc hien hach - hanh mang ((cau duong) or (((van duong) OR (van dung)))) cong tan tran ban*.