Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh toan » thanh hoa, thanh san, tinh toan
thanh tai » thanh hai, doanh tai, thanh san
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
vu cam » vu cham, vu cao, tu cam
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
lo va » lo van, lao va, ly va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang ma hoi. hieu ((vu cam) or (va cam)) lo va ((thanh tai) OR (thanh toan)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang ma hoi. hieu ((vu cam) OR (va cam)) lo va ((thanh tai) OR (thanh toan)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang ma hoi. hieu ((vu cam) or (va cam)) lo va ((thanh tai) OR (thanh toan)) cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang ma hoi. hieu ((vu cam) or (va cam)) lo va ((thanh tai) OR (thanh toan)) cua tre*.