Perhaps you should try some spelling variations:
thi hang » thi hanh, thi hong, thi thanh
thi nang » thi cong, ki nang, thi hanh
ban hanh » ban hang
hanh loc » thanh loi, hanh duoc, nhanh doc
cau treo » cau theo, cau tren, cau triet
su sach » so sach, vu sach
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
loc va » hoc va, luc va
di cau » da cau, diem cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((thi hang) or (thi nang)) xa hoi. phien ban hanh loc va danh di cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((thi hang) OR (thi nang)) xa hoi. phien ban hanh loc va danh di cau treo.
• Adding a wildcard symbol may retrieve word variants: su sach ((thi hang) or (thi nang)) xa hoi. phien ban hanh loc va danh di cau treo*.