Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cham tuc » pham thuc, tham thuc, cham soc
va thanh » gia thanh, ban thanh, va tinh
hai cuc » tai cuc, hai cua, thai cua
hai cuu » hai cua, hai chu, thai cua
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
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 ve ((cham tuc) or (nham thuc)) va thanh ((hai cuu) OR (hai cuc)) tre~.
• 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)) va thanh ((hai cuu) OR (hai cuc)) tre.
• 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)) va thanh ((hai cuu) OR (hai cuc)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve ((cham tuc) or (nham thuc)) va thanh ((hai cuu) OR (hai cuc)) tre*.