Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc va
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
qua cam » qua cham, qua cac, qua ca
xuc van » duc van, luc van, chuc van
xuc ban » duc ban, cuc ban, quoc ban
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
vi cuu » vi luu, vinh cuu

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 y nang ma hoi. hieu qua cam ((((xuc van) OR (thuc van))) or (xuc ban)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoi. hieu qua cam ((((xuc van) OR (thuc van))) OR (xuc ban)) hanh vi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ma hoi. hieu qua cam ((((xuc van) OR (thuc van))) or (xuc ban)) hanh vi cuu tre*".