Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
quan trong » gian trong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » anh tang, hanh mang, nhanh thang
hanh tung » thanh tung, manh tung, hanh dung
cong tan » cong tac, cong san, cong thanh
tran tap » toan tap, tran tan, tran tuan
he hieu » he nhieu, he dieu, de hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: he hieu lang - ((((hanh tang) OR (hanh tung))) or (hanh trang)) quan trong cong tan tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: he hieu lang - ((((hanh tang) OR (hanh tung))) OR (hanh trang)) quan trong cong tan tran tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "he hieu lang - ((((hanh tang) OR (hanh tung))) or (hanh trang)) quan trong cong tan tran tap".
• Adding a wildcard symbol may retrieve word variants: he hieu lang - ((((hanh tang) OR (hanh tung))) or (hanh trang)) quan trong cong tan tran tap*.