Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hanh manh » hanh mang, lanh manh, hoang manh
dung cong » dung trong
ho chieu » theo chieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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)) xanh - hanh manh cua dung cong ((van toan) or (van tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - hanh manh cua dung cong ((van toan) OR (van tuan)) cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - hanh manh cua dung cong ((van toan) or (van tuan)) cao*.