Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cua triet, dua tren
cam suc » cam xuc, cao suc, cham soc
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
ma hoi » mai hoi, xa hoi, me hoi
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: te sach ty nang ((ma hoi) OR (ma hoa)). hieu ve cam suc manh hanh vai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ((ma hoi) OR (ma hoa)). hieu ve cam suc manh hanh vai ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ((ma hoi) OR (ma hoa)). hieu ve cam suc manh hanh vai ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ((ma hoi) OR (ma hoa)). hieu ve cam suc manh hanh vai ((cua tre) or (cuu tre))*.