Perhaps you should try some spelling variations:
thai cua » than cua, tri cua, dai cua
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
va hanh » van hanh, va thanh, va danh
su sai » su hai, su dai, su mai
su tai » su thi, tu tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sai) OR (su tai)) ky dang xa hoi. hieu ve pham duc va hanh ((thai cua) or (tai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sai) OR (su tai)) ky dang xa hoi. hieu ve pham duc va hanh ((thai cua) OR (tai cuc)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sai) OR (su tai)) ky dang xa hoi. hieu ve pham duc va hanh ((thai cua) or (tai cuc)) tre".
• Adding a wildcard symbol may retrieve word variants: ((su sai) OR (su tai)) ky dang xa hoi. hieu ve pham duc va hanh ((thai cua) or (tai cuc)) tre*.