Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
hoc chiet » hoc thiet, hoc nhiet, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
duong van » duong va, luong va, dang van
dung van » dung va, dang van, dung luan
dung von » dong von, dung cong, dung va
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 chiet tach - hanh trinh cua nhung ((((dung van) or (dung von))) or (duong van)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - hanh trinh cua nhung ((((dung van) OR (dung von))) OR (duong van)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - hanh trinh cua nhung ((((dung van) or (dung von))) or (duong van)) toan ban*.