Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
thanh lap » thanh san, phan lap, thanh hai
hanh tai » thanh tai, hang tai, hinh tai
han tai » hang tai, nhan tai, van tai
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
hac duc » hoc duc, ha duc, thach duc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va hac » van hac, va khac, va cac

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 xa hoi. hieu va hac duc va ((((hanh tai) or (han tai))) or (thanh lap)) chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu va hac duc va ((((hanh tai) OR (han tai))) OR (thanh lap)) chau triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu va hac duc va ((((hanh tai) or (han tai))) or (thanh lap)) chau triet*.