Perhaps you should try some spelling variations:
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
hanh vinh » thanh vinh, khanh vinh, anh vinh
hieu cua » hieu qua, dieu cua, bieu cua
lang van » dang van, tang van, hoang van
tu sach » thu sach, te sach, tu cach
cac xuc » cam xuc, cac nuoc, chat xuc
ky lang » ky nang, ky dang, ky tang
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va

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 lang van hoa. hieu cua cac xuc va ((hanh vinh) OR (hanh tinh)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky lang van hoa. hieu cua cac xuc va ((hanh vinh) OR (hanh tinh)) cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky lang van hoa. hieu cua cac xuc va ((hanh vinh) OR (hanh tinh)) cuu tre*".