Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
theo chieu » theo tieu, theo chu, thi chieu
cua truong » cua trung, xuan truong, cac truong
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
hoc dieu » hoc thieu, hoc hien
ho chieu » hoc thieu, doi chieu, mot chieu
tinh cua » trinh cua, sinh cua, tinh chat
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (((ho chieu) OR (theo chieu)))) xanh - hanh tinh cua truong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (((ho chieu) OR (theo chieu)))) xanh - hanh tinh cua truong cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc dieu) or (((ho chieu) OR (theo chieu)))) xanh - hanh tinh cua truong cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (((ho chieu) OR (theo chieu)))) xanh - hanh tinh cua truong cong tac toan cao*.