Perhaps you should try some spelling variations:
su triet » su viet, su tien
ve triet » va trien
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
tinh vi » trinh vi, tinh voi, tinh va
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
xuc va » tuc va, luc va, xac 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) or (duc va)) tinh vi ((su triet) OR (ve 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) OR (duc va)) tinh vi ((su triet) OR (ve 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) or (duc va)) tinh vi ((su triet) OR (ve triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ma hoi. lieu va cam ((xuc va) or (duc va)) tinh vi ((su triet) OR (ve triet))*.