Perhaps you should try some spelling variations:
trinh viet » ninh viet, trinh vat
trinh vi » trinh va, trinh ve, trinh van
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
tinh vi » tinh voi, tinh va, dinh vi
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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 ky nang ma hoi. lieu va cam xuc va ((tinh vi) or (((trinh vi) OR (trinh viet)))) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ma hoi. lieu va cam xuc va ((tinh vi) OR (((trinh vi) OR (trinh viet)))) su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ma hoi. lieu va cam xuc va ((tinh vi) or (((trinh vi) OR (trinh viet)))) su triet*".