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