Perhaps you should try some spelling variations:
thuat nhung » thuat hung, thuat chung, thuat chuong
trinh thuat » trinh luat, trinh thiet, trinh thuc
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
tran chau » tranh chap, tran huu
doc hieu » toc thieu, hoc hien
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) OR (hoc thieu)) xanh - hanh trinh thuat nhung ((cong tan) or (cong trinh)) tran chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - hanh trinh thuat nhung ((cong tan) OR (cong trinh)) tran chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc thieu)) xanh - hanh trinh thuat nhung ((cong tan) or (cong trinh)) tran chau".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc thieu)) xanh - hanh trinh thuat nhung ((cong tan) or (cong trinh)) tran chau*.