Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (hoc thieu)) xanh - ((thanh trung) OR (canh tranh)) va nhung cong san phan cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (hoc thieu)) xanh - ((thanh trung) OR (canh tranh)) va nhung cong san phan cac".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (hoc thieu)) xanh - ((thanh trung) OR (canh tranh)) va nhung cong san phan cac*.