Perhaps you should try some spelling variations:
dau thuc » dan thuc, dai thuc, dam thuc
vat hanh » vat thanh, van hanh, va hanh
tu sach » thu sach, su sach, te sach
ty nang » ky nang, ty hang, ly nang
hieu va » lieu va, hieu qua
tu tren » tu truyen, tu tieng, tu trong
va dau » va dao
vi tu » vi tut, voi tu, va 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 ((ty nang) OR (ty xang)) xa hoi. hieu va dau thuc vat hanh vi tu tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty xang)) xa hoi. hieu va dau thuc vat hanh vi tu tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ty xang)) xa hoi. hieu va dau thuc vat hanh vi tu tren*.