Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
cham luc » cham soc, nhan luc, cham cuu
tu sach » thu sach, su sach, te sach
ty nang » ty hang, ly nang, ty nong
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
luc gia » luoc gia, duc gia, quoc gia
cua tu » cua tuc, cua su, cua cu

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))) or (ky nang)) mai hoi. hieu ve cham luc gia thanh dai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((ty nang) OR (ty xang))) OR (ky nang)) mai hoi. hieu ve cham luc gia thanh dai cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((((ty nang) OR (ty xang))) or (ky nang)) mai hoi. hieu ve cham luc gia thanh dai cua tu*".