Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tang luan » dung luan
theo chu » theo chieu, cho chu, chao chu
tang cua » mang cua, hang cua, thong cua
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (theo tieu)) xanh - hanh ((tang cua) or (tang luan)) thong cong tac tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (theo tieu)) xanh - hanh ((tang cua) OR (tang luan)) thong cong tac tran cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (theo tieu)) xanh - hanh ((tang cua) or (tang luan)) thong cong tac tran cau*.