Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoc thieu » toc thieu
cad trong » cay trong, ca trong, chat trong
ho chieu » theo chieu, doi chieu, mot chieu
tung cad » trung cap, thong cad, trung can
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((hoc thieu) OR (hoc hien)))) xanh - thanh tung cad trong cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (((hoc thieu) OR (hoc hien)))) xanh - thanh tung cad trong cong tac toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((hoc thieu) OR (hoc hien)))) xanh - thanh tung cad trong cong tac toan cau*.