Perhaps you should try some spelling variations:
thu cac » tu cac, thu cuc, thu dac
hai cuc » tai cuc, hai cua, thai cua
hai cuu » hai cua, hai chu, thai cua
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
thu xac » thau xay
cac lo » cac lop, cac co, cac bo
lo va » lo van, lao va, ly va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu cac) OR (thu xac)) ky nang xa hoi. hieu va cac lo va hanh ((hai cuu) or (hai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu cac) OR (thu xac)) ky nang xa hoi. hieu va cac lo va hanh ((hai cuu) OR (hai cuc)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu cac) OR (thu xac)) ky nang xa hoi. hieu va cac lo va hanh ((hai cuu) or (hai cuc)) tre".
• Adding a wildcard symbol may retrieve word variants: ((thu cac) OR (thu xac)) ky nang xa hoi. hieu va cac lo va hanh ((hai cuu) or (hai cuc)) tre*.