Perhaps you should try some spelling variations:
su sach » so sach, vu sach
va dinh » van dinh, va kinh, vu dinh
ty nang » ky nang, ty xang, ty hang
va tinh » may tinh
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
cac xuc » cam xuc, cac nuoc, chat xuc
du cua » duy cua, dau cua, dum cua
ve cac » va cac, vien cac
ma hoi » mai hoi, ma hoa, me hoi
cua te » cua tu

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 ty nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((va dinh) OR (va tinh)) du cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ((ma hoi) OR (xa hoi)). hieu ve cac xuc ((va dinh) OR (va tinh)) du cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((va dinh) OR (va tinh)) du cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ((ma hoi) or (xa hoi)). hieu ve cac xuc ((va dinh) OR (va tinh)) du cua te*.