Perhaps you should try some spelling variations:
trinh vat » trinh van, trinh luat, sinh vat
ban trinh » ban tinh, dan trinh, van trinh
su sach » so sach, vu sach
te sach » toc sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cam cua » ca cua, nam cua, cau cua
vat cau » dat cau, va cau, van cau
cau tre » cau tren, cau treo, cau tra
ve cam » ve cham, ve cac, va cam

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 (te sach)) ky lang xa hoi. hieu ve cam cua ban trinh vat cau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky lang xa hoi. hieu ve cam cua ban trinh vat cau tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky lang xa hoi. hieu ve cam cua ban trinh vat cau tre*.