Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh hai » thanh hai, nhanh hai, hang hai
so sach » so sanh, bo sach, co sach
vu sach » vu bach, vu khach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cham tu » pham tu, cam tu, chai tu
va hanh » van hanh, va thanh, va danh
y nang » ky nang, ly nang, v nang
hai su » hai vu, lai su, hai so

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))) or (vu sach)) y nang x ho. hieu ve cham tu va hanh hai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((su sach) OR (so sach))) OR (vu sach)) y nang x ho. hieu ve cham tu va hanh hai su triet.
• Adding a wildcard symbol may retrieve word variants: ((((su sach) or (so sach))) or (vu sach)) y nang x ho. hieu ve cham tu va hanh hai su triet*.