Perhaps you should try some spelling variations:
hanh hanh » hanh han, xanh hanh, nhanh thanh
dau luan » dan luan, dat luan, khau luan
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
dau luu » dan luu, dau luot
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
le cua » ly cua

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 qua ((dau luu) or (dau luan)) hanh hanh ((vi cua) or (le cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu qua ((dau luu) OR (dau luan)) hanh hanh ((vi cua) OR (le cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu qua ((dau luu) or (dau luan)) hanh hanh ((vi cua) or (le cua)) tre*.