Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
tinh vi » trinh vi, tinh voi, tinh va
va tinh » may tinh
cac xuc » cam xuc, cac nuoc, chat xuc
su sach » so sach, vu sach
ky tang » ky dang, kho tang, ky trong
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
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) or (thu sach)) ((ky tang) OR (ky nang)) xa hoi. hieu ve cac xuc va tinh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu sach)) ((ky tang) OR (ky nang)) xa hoi. hieu ve cac xuc va tinh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (thu sach)) ((ky tang) OR (ky nang)) xa hoi. hieu ve cac xuc va tinh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu sach)) ((ky tang) OR (ky nang)) xa hoi. hieu ve cac xuc va tinh vi cua te*.