Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
hieu van » hieu va, thien van, lieu va
van pham » san pham, van phan, van phat
duc danh » duc anh, duc manh, duc dan
duc hanh » duc thanh, duc anh, du hanh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
vai cua » dai cua, hai cua, lai cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x ho. hieu van pham ((duc danh) OR (duc hanh)) thanh vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x ho. hieu van pham ((duc danh) OR (duc hanh)) thanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x ho. hieu van pham ((duc danh) OR (duc hanh)) thanh vai cua te*.