Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van ban
tham xuc » tham nuoc, tham thuc, pham duc
van tham » van thanh, van tuan, van chat
hieu van » hieu va, thien van, lieu va
sang ma » tang ma, nang ma, sang tao
vu sang » vua sang, vu dang, vu san
su sach » so sach, vu sach
van anh » van thanh, tuan anh, van minh
tu sach » thu sach, te sach, tu cach
ma hoi » mai hoi, xa hoi, ma hoa
ki su » ky su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) vu sang ma hoi. hieu van tham xuc ((van hanh) OR (van anh)) ki su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) vu sang ma hoi. hieu van tham xuc ((van hanh) OR (van anh)) ki su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) vu sang ma hoi. hieu van tham xuc ((van hanh) OR (van anh)) ki su triet*".