Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cao trieu » cac trieu, cau trieu, cao hieu
vanh tao » vang tao, vanh tai, sang tao
thu sach » tu sach, thuat sach, thu hoach
va cham » va chat, va tham
va vanh » va van, va danh, va hanh
tao cao » bao cao, toan cao
va cam » va cac, va cao, va cai
tuc va » thuc va, truc va, tuc xa

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) OR (thuoc sach)) ky nang x ho. hieu ((va cam) or (va cham)) tuc va vanh tao cao trieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuoc sach)) ky nang x ho. hieu ((va cam) OR (va cham)) tuc va vanh tao cao trieu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuoc sach)) ky nang x ho. hieu ((va cam) or (va cham)) tuc va vanh tao cao trieu".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (thuoc sach)) ky nang x ho. hieu ((va cam) or (va cham)) tuc va vanh tao cao trieu*.