Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
hanh doi » thanh doi, hanh noi, hang doi
duc manh » suc manh, duc anh, duc minh
tu sach » thu sach, su sach, tu cach
doi cua » dai cua, hoi cua
thu duc » thu tuc, tho duc, thu muc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, v nang

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 (te sach)) y nang ma hoi. ((hieu ve) or (lieu va)) thu duc manh hanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y nang ma hoi. ((hieu ve) OR (lieu va)) thu duc manh hanh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) y nang ma hoi. ((hieu ve) or (lieu va)) thu duc manh hanh doi cua tre*.