Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
thuat nhung » thuat hung, thuat chung, thuat chuong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hieu xanh » hieu manh, hieu nganh, dieu hanh
tran chau » tranh chap, tran huu
cong tan » cong tac, cong san, cong thanh

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 (((chieu xanh) OR (chieu sach)))) - hanh trinh thuat nhung cong tan tran chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (((chieu xanh) OR (chieu sach)))) - hanh trinh thuat nhung cong tan tran chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) or (((chieu xanh) OR (chieu sach)))) - hanh trinh thuat nhung cong tan tran chau".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (((chieu xanh) OR (chieu sach)))) - hanh trinh thuat nhung cong tan tran chau*.