Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
trong bai » trong ban, thong bai, trong hai
ho chieu » doi chieu, mot chieu, thi chieu
cua dung » cua dang, cua dong, qua dung
bai toan » bai tap
toan cau » 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: ((((ho chieu) or (hoc thieu))) or (theo chieu)) sang - thanh trung cua dung trong bai toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (hoc thieu))) OR (theo chieu)) sang - thanh trung cua dung trong bai toan cau.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (hoc thieu))) or (theo chieu)) sang - thanh trung cua dung trong bai toan cau*.