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, han tai
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
hac duc » hoc duc, ha duc, thach duc
tu sac » tu cac, tu san, tu bac
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 sac) OR (tu sach)) ky nang xa hoi. hieu va hac duc va ((hanh tai) or (thanh lap)) chau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky nang xa hoi. hieu va hac duc va ((hanh tai) OR (thanh lap)) chau triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu sach)) ky nang xa hoi. hieu va hac duc va ((hanh tai) or (thanh lap)) chau triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu sach)) ky nang xa hoi. hieu va hac duc va ((hanh tai) or (thanh lap)) chau triet*.