Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trang » canh tranh, hanh trinh, minh trang
hoc chieu » hoc thieu, hoc hien, hoc dieu
tong cong » trong cong, cong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
va tong » va thong, va tuong, va trong
tac tan » tac can, tac van, tat tan
tan ban » toan ban, tang ban, van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (ho chieu)) xanh - ((hanh trang) or (thanh trung)) va tong cong tac tan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) xanh - ((hanh trang) OR (thanh trung)) va tong cong tac tan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (ho chieu)) xanh - ((hanh trang) or (thanh trung)) va tong cong tac tan ban*.