Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
duc manh » suc manh, duc anh, duc minh
dua tren » dung tren
hanh lai » hanh lam, hanh tai, thanh lap
thu sach » tu sach, thuat sach, thuoc sach
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, lang xa, nang ma
ve cam » ve cham, ve cac, va cam
y nang » ky nang, ly nang, v nang
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu ve cam duc manh hanh lai ((((cuu tre) or (dua tren))) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu ve cam duc manh hanh lai ((((cuu tre) OR (dua tren))) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ve cam duc manh hanh lai ((((cuu tre) or (dua tren))) or (cua te))*.