Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
phan cau » phan dau, phan cac, phan tu
phan cuu » phan huu, phan cung, phan tu
cham tuc » nham thuc, pham thuc, tham thuc
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
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: tu sach y nang xa hoi. hieu va ((cham tuc) or (nam thu)) va thanh ((phan cuu) OR (phan cau)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu va ((cham tuc) OR (nam thu)) va thanh ((phan cuu) OR (phan cau)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu va ((cham tuc) or (nam thu)) va thanh ((phan cuu) OR (phan cau)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu va ((cham tuc) or (nam thu)) va thanh ((phan cuu) OR (phan cau)) tre*.