Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sach loai » sach bai, cac loai, sach doi
loai nang » loai nam, luan nang, loai san
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
tai duc » tai cuc, mai duc, tai du
duc tre » duoc tren, duc tien
ve cau » ke cau, va cau, le cau
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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 loai nang x hoi. hieu ((ve cau) OR (ve cac)) duc va thanh tai duc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach loai nang x hoi. hieu ((ve cau) OR (ve cac)) duc va thanh tai duc tre*".