Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
thong cong » trong cong, tong cong, thong thong
doc hieu » toc thieu, hoc thieu, hoc hien
doanh va » doanh tai, doanh cua, hanh va
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cau » phan dau, phan cac, phan tu

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 (theo chieu)) sang - canh ((doanh va) or (doan va)) thong cong san phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (theo chieu)) sang - canh ((doanh va) OR (doan va)) thong cong san phan cau.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (theo chieu)) sang - canh ((doanh va) or (doan va)) thong cong san phan cau*.