Perhaps you should try some spelling variations:
cham giua » tham gia, nhat giua, cam gia
ban thanh » ban hanh, ban hang
thanh lai » thanh hai, thanh lap, thanh loi
cham dua » chay dua, pham duc, pham duy
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
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: te sach y nang ma hoa. hieu ve ((cham dua) OR (cham giua)) ban thanh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoa. hieu ve ((cham dua) OR (cham giua)) ban thanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoa. hieu ve ((cham dua) OR (cham giua)) ban thanh lai cua tre*.