Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nung giang » huong giang, hong giang, ninh giang
giang lang » gian lang, giang van, gian lan
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh nung » hanh nhung, hanh dung, hanh tung
lang cong » dang cong, bang cong, hang cong
cong tinh » cong trinh, cong vinh, long tinh
toan 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 ((hieu manh) or (chieu sach)) - hanh nung giang lang cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - hanh nung giang lang cong tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu sach)) - hanh nung giang lang cong tinh toan ban*.