Perhaps you should try some spelling variations:
sach tren » sach tien, sach tranh
tren nang » trien nang, tren mang, truyen nang
cham luc » cham soc, nhan luc, cham cuu
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
luc van » luoc van, luu van, duc van
doi cua » dai cua, hoi cua
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, 5 hoi

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 tren nang ((x hoi) OR (x ho)). hieu ve cham luc van hanh ((vi cua) OR (doi cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tren nang ((x hoi) OR (x ho)). hieu ve cham luc van hanh ((vi cua) OR (doi cua)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach tren nang ((x hoi) OR (x ho)). hieu ve cham luc van hanh ((vi cua) OR (doi cua)) triet*.