Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
luc manh » luc canh, suc manh, luc nganh
hanh tai » thanh tai, hang tai, han tai
duc manh » suc manh, duc anh, duc minh
hanh lai » hanh lam, thanh lap, thanh loi
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
van cau » van dau, van hau, van chat
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, v nang
cua te » cua 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 y nang ma hoi. hieu van cau ((luc manh) OR (duc manh)) ((hanh lai) or (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang ma hoi. hieu van cau ((luc manh) OR (duc manh)) ((hanh lai) OR (hanh tai)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ma hoi. hieu van cau ((luc manh) OR (duc manh)) ((hanh lai) or (hanh tai)) cua te*".