Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, le thanh
tu cach » tu cac
va tinh » may tinh
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
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: ((tu cach) or (thu sach)) ty nang ma hoi. hieu va cam xuc ((va thanh) OR (va tinh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ty nang ma hoi. hieu va cam xuc ((va thanh) OR (va tinh)) vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (thu sach)) ty nang ma hoi. hieu va cam xuc ((va thanh) OR (va tinh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ty nang ma hoi. hieu va cam xuc ((va thanh) OR (va tinh)) vi cua te*.