Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
thu sach » tu sach, thuat sach, thuoc sach
hanh dai » hanh tai, hanh dao, vanh dai
xuc manh » suc manh, duc manh, duc minh
tru nang » tra nang, tri nang, truc nano
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
tu nang » tu nong, tu nano, tu lang
ve cai » va cai, ve cac, ve tai

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 ((tu nang) OR (tru nang)) xa hoi. hieu ((ve cai) or (ve cham)) xuc manh hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((tu nang) OR (tru nang)) xa hoi. hieu ((ve cai) OR (ve cham)) xuc manh hanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((tu nang) OR (tru nang)) xa hoi. hieu ((ve cai) or (ve cham)) xuc manh hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((tu nang) OR (tru nang)) xa hoi. hieu ((ve cai) or (ve cham)) xuc manh hanh dai cua tre*.