Perhaps you should try some spelling variations:
sach tham » sach nha
su triet » su viet, su tien, ve triet
sang mai » sang ma, lang mai, hoang mai
ban hanh » ban hang
sang tai » hang tai, sang tao, tang tai
cam cuc » cam xuc, cham cuu, pham cuc
hanh di » hanh vi, hanh de, hang di
cuc ban » cua ban, cac ban, cuu ban
su sach » so sach, vu sach
hieu va » hieu qua
di su » doi su, ki su, da 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 tham ((sang mai) or (sang tai)) hoi. ((hieu va) or (lieu va)) cam cuc ban hanh di su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tham ((sang mai) OR (sang tai)) hoi. ((hieu va) OR (lieu va)) cam cuc ban hanh di su triet.
• Adding a wildcard symbol may retrieve word variants: su sach tham ((sang mai) or (sang tai)) hoi. ((hieu va) or (lieu va)) cam cuc ban hanh di su triet*.