Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
dinh trinh » dinh tinh, sinh trinh, dinh tri
trinh cuu » trinh cau, trinh cua, trinh chu
cam truc » cau truc, nam truc, lam truoc
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
va dinh » van dinh, va kinh, va tinh
truc va » thuc va, thuc vat, trung va
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu van
x hoi » xa hoi, o hoi, x ho

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 (thuat lanh)) ky nang x hoi. ((hieu ve) or (hieu va)) cam truc va dinh trinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuat lanh)) ky nang x hoi. ((hieu ve) OR (hieu va)) cam truc va dinh trinh cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuat lanh)) ky nang x hoi. ((hieu ve) or (hieu va)) cam truc va dinh trinh cuu tre*.