Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
cham luc » cham soc, nhan luc, cham cuu
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
su sach » vu sach
so sach » so sanh, bo sach, co sach
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va cham » va chat, va tham
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc va
dat su » sat su

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) or (so sach)) y nang ma hoi. hieu va cham luc va thanh dat su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) y nang ma hoi. hieu va cham luc va thanh dat su triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) y nang ma hoi. hieu va cham luc va thanh dat su triet*.