Perhaps you should try some spelling variations:
nang thai » nang tai, dang thai, lang thai
ve triet » va trien, su triet
thai ve » thai va, thai viet, thai den
va nang » van nang, da nang, cam nang
thue va » thuc va, thuyet va, thuc vat
va cham » va chat, va tham
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
ma hoi » mai hoi, xa hoi, ma hoa

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) or (so sach)) ty nang ma hoi. hieu ((va cac) or (va cham)) thue va nang thai ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) ty nang ma hoi. hieu ((va cac) OR (va cham)) thue va nang thai ve triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) ty nang ma hoi. hieu ((va cac) or (va cham)) thue va nang thai ve triet*.