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