Perhaps you should try some spelling variations:
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
va cham » va chat, va tham
xuc van » duc van, vuc van, xuc ban
luc van » luoc van, luu van, duc van
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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 (su sach)) ky sang ma hoi. lieu va cham ((xuc van) OR (luc van)) hanh vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky sang ma hoi. lieu va cham ((xuc van) OR (luc van)) hanh vi cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky sang ma hoi. lieu va cham ((xuc van) OR (luc van)) hanh vi cua vat".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky sang ma hoi. lieu va cham ((xuc van) OR (luc van)) hanh vi cua vat*.