Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
chua xang » chua nang, chuc nang, chu bang
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong ty
than tap » toan tap, han tap, phan tap
chu van » cuu van, chu han

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

• Performing a fuzzy search may retrieve terms with similar spellings: sua ((chu van) or (chua xang)) - hanh tang cua nhung ((cong thanh) OR (cong tan)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sua ((chu van) OR (chua xang)) - hanh tang cua nhung ((cong thanh) OR (cong tan)) than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "sua ((chu van) or (chua xang)) - hanh tang cua nhung ((cong thanh) OR (cong tan)) than tap".
• Adding a wildcard symbol may retrieve word variants: sua ((chu van) or (chua xang)) - hanh tang cua nhung ((cong thanh) OR (cong tan)) than tap*.