Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
anh truong » manh truong, anh thuong, anh trong
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong tac » cong ty
tac vien » tai vien, tac viet, hoc vien
vien huu » vien hau, vien phu, vien sau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - ((manh trung) or (anh truong)) cua nhung cong tac vien huu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((manh trung) OR (anh truong)) cua nhung cong tac vien huu.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((manh trung) or (anh truong)) cua nhung cong tac vien huu*.